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[simgrid.git] / src / surf / surf_routing.c
index 38deaf6..f11bd97 100644 (file)
 #include "xbt/set.h"
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route,surf,"Routing part of surf");
-
-
-// FIXME: the next two lines cant be comented without fix the code in network.c file.
-routing_t used_routing = NULL;
-xbt_dict_t onelink_routes = NULL;
-// 
-// /* Prototypes of each model */
-// static void routing_model_full_create(size_t size_of_link,void *loopback);
-// // static void routing_model_floyd_create(size_t size_of_link, void*loopback);
-// // static void routing_model_dijkstra_create(size_t size_of_link, void*loopback);
-// // static void routing_model_dijkstracache_create(size_t size_of_link, void*loopback);
-// //static void routing_model_none_create(size_t size_of_link, void*loopback);
-// 
-// /* Definition of each model */
-// struct model_type {
-//   const char *name;
-//   const char *desc;
-//   void (*fun)(size_t,void*);
-// };
-// 
-// struct model_type models[] =
-// { {"Full", "Full routing data (fast, large memory requirements, fully expressive)", routing_model_full_create },
-// //   {"Floyd", "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)", routing_model_floyd_create },
-// //   {"Dijkstra", "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)", routing_model_dijkstra_create },
-// //   {"DijkstraCache", "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)", routing_model_dijkstracache_create },
-// //  {"none", "No routing (usable with Constant network only)", routing_model_none_create },
-//     {NULL,NULL,NULL}};
     
 ////////////////////////////////////////////////////////////////////////////////
 // HERE START THE NEW CODE
@@ -47,14 +20,14 @@ xbt_dict_t onelink_routes = NULL;
 
 //...... DEBUG ONLY .... //
 static void print_tree(routing_component_t rc);
-static void print_global();
+static void print_global(void);
 static void print_AS_start(void);
 static void print_AS_end(void);
 static void print_host(void);
 static void print_link(void);
 static void print_route(void);
 static void print_ctn(void);
-static void DEGUB_exit(void);
+static void DEBUG_exit(void);
 
 ////////////////////////////////////////////////////////////////////////////////
 // HERE START THE NEW CODE
@@ -66,87 +39,222 @@ routing_component_t current_routing = NULL;
 model_type_t current_routing_model = NULL;
 
 /* Prototypes of each model */
-static void* model_full_create(); /* create structures for full routing model */
-static void  model_full_load();   /* load parse functions for full routing model */
-static void  model_full_unload(); /* unload parse functions for full routing model */
-static void  model_full_end();    /* finalize the creation of full routing model */
-
-static void* model_floyd_create(); /* create structures for floyd routing model */
-static void  model_floyd_load();   /* load parse functions for floyd routing model */
-static void  model_floyd_unload(); /* unload parse functions for floyd routing model */
-static void  model_floyd_end();    /* finalize the creation of floyd routing model */
-
-static void* model_dijkstra_create(); /* create structures for dijkstra routing model */
-static void  model_dijkstra_load();   /* load parse functions for dijkstra routing model */
-static void  model_dijkstra_unload(); /* unload parse functions for dijkstra routing model */
-static void  model_dijkstra_end();    /* finalize the creation of dijkstra routing model */
-
-static void* model_dijkstracache_create(); /* create structures for dijkstracache routing model */
-static void  model_dijkstracache_load();   /* load parse functions for dijkstracache routing model */
-static void  model_dijkstracache_unload(); /* unload parse functions for dijkstracache routing model */
-static void  model_dijkstracache_end();    /* finalize the creation of dijkstracache routing model */
-
-static void* model_none_create(); /* none routing model */
-static void  model_none_load();   /* none routing model */
-static void  model_none_unload(); /* none routing model */
-static void  model_none_end();    /* none routing model */
+static void* model_full_create(void); /* create structures for full routing model */
+static void  model_full_load(void);   /* load parse functions for full routing model */
+static void  model_full_unload(void); /* unload parse functions for full routing model */
+static void  model_full_end(void);    /* finalize the creation of full routing model */
+
+static void* model_floyd_create(void); /* create structures for floyd routing model */
+static void  model_floyd_load(void);   /* load parse functions for floyd routing model */
+static void  model_floyd_unload(void); /* unload parse functions for floyd routing model */
+static void  model_floyd_end(void);    /* finalize the creation of floyd routing model */
+
+static void* model_dijkstra_both_create(int cached); /* create by calling dijkstra or dijkstracache */
+static void* model_dijkstra_create(void);      /* create structures for dijkstra routing model */
+static void* model_dijkstracache_create(void); /* create structures for dijkstracache routing model */
+static void  model_dijkstra_both_load(void);   /* load parse functions for dijkstra routing model */
+static void  model_dijkstra_both_unload(void); /* unload parse functions for dijkstra routing model */
+static void  model_dijkstra_both_end(void);    /* finalize the creation of dijkstra routing model */
+
+static void* model_none_create(void); /* none routing model */
+static void  model_none_load(void);   /* none routing model */
+static void  model_none_unload(void); /* none routing model */
+static void  model_none_end(void);    /* none routing model */
 
 /* Table of routing models */
-/* must be finish with null and carefull if change de order */
-
-#define SURF_MODEL_FULL          0
-#define SURF_MODEL_FLOYD         1
-#define SURF_MODEL_DIJKSTRA      2
-#define SURF_MODEL_DIJKSTRACACHE 3
-#define SURF_MODEL_NONE          4
+// typedef enum {
+//   SURF_MODEL_FULL = 0,
+//   SURF_MODEL_FLOYD,
+//   SURF_MODEL_DIJKSTRA,
+//   SURF_MODEL_DIJKSTRACACHE,
+//   SURF_MODEL_NONE
+// } e_surf_model_type_t;
+
+/* this lines are olny for replace use like index in the model table */
+#define SURF_MODEL_FULL           0
+#define SURF_MODEL_FLOYD          1
+#define SURF_MODEL_DIJKSTRA       2
+#define SURF_MODEL_DIJKSTRACACHE  3
+#define SURF_MODEL_NONE           4
 
+/* must be finish with null and carefull if change de order */
 struct s_model_type routing_models[] =
 { {"Full", "Full routing data (fast, large memory requirements, fully expressive)",
   model_full_create, model_full_load, model_full_unload, model_full_end },  
   {"Floyd", "Floyd routing data (slow initialization, fast lookup, lesser memory requirements, shortest path routing only)",
   model_floyd_create, model_floyd_load, model_floyd_unload, model_floyd_end },
   {"Dijkstra", "Dijkstra routing data (fast initialization, slow lookup, small memory requirements, shortest path routing only)",
-  model_dijkstra_create ,model_dijkstra_load, model_dijkstra_unload, model_dijkstra_end },
+  model_dijkstra_create ,model_dijkstra_both_load, model_dijkstra_both_unload, model_dijkstra_both_end },
   {"DijkstraCache", "Dijkstra routing data (fast initialization, fast lookup, small memory requirements, shortest path routing only)",
-  model_dijkstracache_create, model_dijkstracache_load, model_dijkstracache_unload, model_dijkstracache_end },
+  model_dijkstracache_create, model_dijkstra_both_load, model_dijkstra_both_unload, model_dijkstra_both_end },
   {"none", "No routing (usable with Constant network only)",
   model_none_create, model_none_load, model_none_unload, model_none_end },
   {NULL,NULL,NULL,NULL,NULL,NULL}};
 
+/* ************************************************************************** */
+/* ***************** GENERIC PARSE FUNCTIONS (declarations) ***************** */
+
+static void generic_set_processing_units(routing_component_t rc, const char* name);
+static void generic_set_autonomous_system(routing_component_t rc, const char* name);
+static void generic_set_route(routing_component_t rc, const char* src, const char* dst, route_t route);
+static void generic_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route);
+static void generic_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route);
+
+/* ************************************************************************** */
+/* *************** GENERIC BUSINESS METHODS (declarations) ****************** */
+
+static route_extended_t generic_get_bypassroute(routing_component_t rc, const char* src, const char* dst);
+
+/* ************************************************************************** */
+/* ****************** GENERIC AUX FUNCTIONS (declarations) ****************** */
+
+static route_extended_t generic_new_extended_route(e_surf_routing_hierarchy_t hierarchy, void* data, int order);
+static void generic_free_extended_route(route_extended_t e_route);
+static routing_component_t generic_autonomous_system_exist(routing_component_t rc, char* element);
+static routing_component_t generic_processing_units_exist(routing_component_t rc, char* element);
+static void generic_src_dst_check(routing_component_t rc, const char* src, const char* dst);
+
+/* ************************************************************************** */
+/* **************************** GLOBAL FUNCTIONS **************************** */
   
 /* global parse functions */
 
+static char* src = NULL;    /* temporary store the source name of a route */
+static char* dst = NULL;    /* temporary store the destination name of a route */
+static char* gw_src = NULL; /* temporary store the gateway source name of a route */
+static char* gw_dst = NULL; /* temporary store the gateway destination name of a route */
+static xbt_dynar_t link_list = NULL; /* temporary store of current list link of a route */ 
+
 /**
  * \brief Add a "host" to the network element list
- *
- * Allows find a "host" in any routing component
  */
 static void  parse_S_host(void) {
+  if( current_routing->hierarchy == SURF_ROUTING_NULL ) current_routing->hierarchy = SURF_ROUTING_BASE;
   xbt_assert1(!xbt_dict_get_or_null(global_routing->where_network_elements,A_surfxml_host_id),
-      "The host \"%s\" already exist",A_surfxml_host_id);
+      "Reading a host, processing unit \"%s\" already exist",A_surfxml_host_id);
+  xbt_assert1(current_routing->set_processing_units,
+      "no defined method \"set_processing_units\" in \"%s\"",current_routing->name);
+  (*(current_routing->set_processing_units))(current_routing,A_surfxml_host_id);
   xbt_dict_set(global_routing->where_network_elements,A_surfxml_host_id,(void*)current_routing,NULL); 
 }
 
 /**
  * \brief Add a "router" to the network element list
- *
- * Allows find a "router" in any routing component
  */
 static void parse_S_router(void) {
+  if( current_routing->hierarchy == SURF_ROUTING_NULL ) current_routing->hierarchy = SURF_ROUTING_BASE;
   xbt_assert1(!xbt_dict_get_or_null(global_routing->where_network_elements,A_surfxml_router_id),
-      "The router \"%s\" already exist",A_surfxml_router_id);
+      "Reading a router, processing unit \"%s\" already exist",A_surfxml_router_id);
+  xbt_assert1(current_routing->set_processing_units,
+      "no defined method \"set_processing_units\" in \"%s\"",current_routing->name);
+  (*(current_routing->set_processing_units))(current_routing,A_surfxml_router_id);
   xbt_dict_set(global_routing->where_network_elements,A_surfxml_router_id,(void*)current_routing,NULL); 
 }
 
 /**
- * \brief Add a "gateway" to the network element list
- *
- * Allows find a "gateway" in any routing component
+ * \brief Set the endponints for a route
+ */
+static void parse_S_route_new_and_endpoints(void) {
+  if( src != NULL && dst != NULL && link_list != NULL )
+    THROW2(arg_error,0,"Route between %s to %s can not be defined",A_surfxml_route_src,A_surfxml_route_dst);
+  src = A_surfxml_route_src;
+  dst = A_surfxml_route_dst;
+  link_list = xbt_dynar_new(sizeof(char*), &xbt_free_ref);
+}
+
+/**
+ * \brief Set the endponints and gateways for a ASroute
+ */
+static void parse_S_ASroute_new_and_endpoints(void) {
+  if( src != NULL && dst != NULL && link_list != NULL )
+    THROW2(arg_error,0,"Route between %s to %s can not be defined",A_surfxml_ASroute_src,A_surfxml_ASroute_dst);
+  src = A_surfxml_ASroute_src;
+  dst = A_surfxml_ASroute_dst;
+  gw_src = A_surfxml_ASroute_gw_src;
+  gw_dst = A_surfxml_ASroute_gw_dst;
+  link_list = xbt_dynar_new(sizeof(char*), &xbt_free_ref);
+}
+
+/**
+ * \brief Set the endponints for a bypassRoute
+ */
+static void parse_S_bypassRoute_new_and_endpoints(void) {
+  if( src != NULL && dst != NULL && link_list != NULL )
+    THROW2(arg_error,0,"Bypass Route between %s to %s can not be defined",A_surfxml_bypassRoute_src,A_surfxml_bypassRoute_dst);
+  src = A_surfxml_bypassRoute_src;
+  dst = A_surfxml_bypassRoute_dst;
+  gw_src = A_surfxml_bypassRoute_gw_src;
+  gw_dst = A_surfxml_bypassRoute_gw_dst;
+  link_list = xbt_dynar_new(sizeof(char*), &xbt_free_ref);
+}
+
+/**
+ * \brief Set a new link on the actual list of link for a route or ASroute
+ */
+static void parse_E_link_c_ctn_new_elem(void) {
+  char *val;
+  val = xbt_strdup(A_surfxml_link_c_ctn_id);
+  xbt_dynar_push(link_list, &val);
+}
+
+/**
+ * \brief Store the route by calling the set_route function of the current routing component
+ */
+static void parse_E_route_store_route(void) {
+  route_t route = xbt_new0(s_route_t,1);
+  route->link_list = link_list;
+  //TODO: NULL?
+  xbt_assert1(generic_processing_units_exist(current_routing,src),"the \"%s\" processing units gateway does not exist",src);
+  xbt_assert1(generic_processing_units_exist(current_routing,dst),"the \"%s\" processing units gateway does not exist",dst);
+  xbt_assert1(current_routing->set_route,"no defined method \"set_route\" in \"%s\"",current_routing->name);
+  (*(current_routing->set_route))(current_routing,src,dst,route);
+  link_list = NULL;
+  src = NULL;
+  dst = NULL;
+}
+
+/**
+ * \brief Store the ASroute by calling the set_ASroute function of the current routing component
+ */
+static void parse_E_ASroute_store_route(void) {
+  route_extended_t e_route = xbt_new0(s_route_extended_t,1);
+  e_route->generic_route.link_list = link_list;
+  e_route->src_gateway = xbt_strdup(gw_src);
+  e_route->dst_gateway = xbt_strdup(gw_dst);
+  //TODO: NULL?
+  xbt_assert1(generic_autonomous_system_exist(current_routing,src),"the \"%s\" autonomous system does not exist",src);
+  xbt_assert1(generic_autonomous_system_exist(current_routing,dst),"the \"%s\" autonomous system does not exist",dst);
+  xbt_assert1(generic_processing_units_exist(current_routing,gw_src),"the \"%s\" processing units gateway does not exist",gw_src);
+  xbt_assert1(generic_processing_units_exist(current_routing,gw_dst),"the \"%s\" processing units gateway does not exist",gw_dst);
+  xbt_assert1(current_routing->set_ASroute,"no defined method \"set_ASroute\" in \"%s\"",current_routing->name);
+  (*(current_routing->set_ASroute))(current_routing,src,dst,e_route);
+  link_list = NULL;
+  src = NULL;
+  dst = NULL;
+  gw_src = NULL;
+  gw_dst = NULL;
+}
+
+/**
+ * \brief Store the bypass route by calling the set_bypassroute function of the current routing component
  */
-static void parse_S_gateway(void) {
-  xbt_assert1(!xbt_dict_get_or_null(global_routing->where_network_elements,A_surfxml_gateway_id),
-      "The gateway \"%s\" already exist",A_surfxml_gateway_id);
-  xbt_dict_set(global_routing->where_network_elements,A_surfxml_gateway_id,(void*)current_routing,NULL); 
+static void parse_E_bypassRoute_store_route(void) {
+  route_extended_t e_route = xbt_new0(s_route_extended_t,1);
+  e_route->generic_route.link_list = link_list;
+  e_route->src_gateway = xbt_strdup(gw_src);
+  e_route->dst_gateway = xbt_strdup(gw_dst);
+  //TODO: NULL?
+  xbt_assert1(generic_autonomous_system_exist(current_routing,src),"the \"%s\" autonomous system does not exist",src);
+  xbt_assert1(generic_autonomous_system_exist(current_routing,dst),"the \"%s\" autonomous system does not exist",dst);
+  xbt_assert1(generic_processing_units_exist(current_routing,gw_src),"the \"%s\" processing units gateway does not exist",gw_src);
+  xbt_assert1(generic_processing_units_exist(current_routing,gw_dst),"the \"%s\" processing units gateway does not exist",gw_dst);
+  xbt_assert1(current_routing->set_bypassroute,"no defined method \"set_bypassroute\" in \"%s\"",current_routing->name);
+  (*(current_routing->set_bypassroute))(current_routing,src,dst,e_route);
+  link_list = NULL;
+  src = NULL;
+  dst = NULL;
+  gw_src = NULL;
+  gw_dst = NULL;
 }
 
 /**
@@ -170,32 +278,39 @@ static void parse_S_AS(void) {
     for (cpt=0;routing_models[cpt].name;cpt++)
       if (!strcmp(wanted,routing_models[cpt].name))
         fprintf(stderr,"   %s: %s\n",routing_models[cpt].name,routing_models[cpt].desc);
-    exit(1);
+    xbt_die(NULL);
   }
 
   /* make a new routing component */
   new_routing = (routing_component_t)(*(model->create))();
   new_routing->routing = model;
+  new_routing->hierarchy = SURF_ROUTING_NULL;
   new_routing->name = xbt_strdup(A_surfxml_AS_id);
   new_routing->routing_sons = xbt_dict_new();
   INFO2("Routing %s for AS %s",A_surfxml_AS_routing,A_surfxml_AS_id);
   
-  if( current_routing == NULL && global_routing->root == NULL )
-  { /* it is the first one */
+  if( current_routing == NULL && global_routing->root == NULL ){
+    
+    /* it is the first one */
     new_routing->routing_father = NULL;
     global_routing->root = new_routing;
-  }
-  else if( current_routing != NULL && global_routing->root != NULL )
-  {  /* it is a part of the tree */
-    new_routing->routing_father = current_routing;
+    
+  } else if( current_routing != NULL && global_routing->root != NULL ) { 
+    
     xbt_assert1(!xbt_dict_get_or_null(current_routing->routing_sons,A_surfxml_AS_id),
            "The AS \"%s\" already exist",A_surfxml_AS_id);
+     /* it is a part of the tree */
+    new_routing->routing_father = current_routing;
+    /* set the father behavior */
+    if( current_routing->hierarchy == SURF_ROUTING_NULL ) current_routing->hierarchy = SURF_ROUTING_RECURSIVE;
+    /* add to the sons dictionary */
     xbt_dict_set(current_routing->routing_sons,A_surfxml_AS_id,(void*)new_routing,NULL);
+    /* add to the father element list */
+    (*(current_routing->set_autonomous_system))(current_routing,A_surfxml_AS_id);
     /* unload the prev parse rules */
     (*(current_routing->routing->unload))();
-  }
-  else
-  {
+    
+  } else {
     THROW0(arg_error,0,"All defined components must be belong to a AS");
   }
   /* set the new parse rules */
@@ -215,6 +330,7 @@ static void parse_E_AS(void) {
   if( current_routing == NULL ) {
     THROW1(arg_error,0,"Close AS(%s), that never open",A_surfxml_AS_id);
   } else {
+      xbt_dict_set(global_routing->where_network_elements,current_routing->name,current_routing->routing_father,NULL);
       (*(current_routing->routing->unload))();
       (*(current_routing->routing->end))();
       current_routing = current_routing->routing_father;
@@ -223,79 +339,38 @@ static void parse_E_AS(void) {
   }
 }
 
-/**
- * \brief Recursive function for add the differents AS to global dict
- *
- * This fuction is call by "parse_E_platform_add_parse_AS". It allow to add the 
- * AS or routing components, to the where_network_elements dictionary. In the same
- * way as "parse_S_host", "parse_S_router" and "parse_S_gateway" do.
- */
-static void _add_parse_AS(routing_component_t rc) {
-  xbt_assert1(!xbt_dict_get_or_null(global_routing->where_network_elements,rc->name),
-     "The AS \"%s\" already exist",rc->name);
-  xbt_dict_set(global_routing->where_network_elements,rc->name,rc->routing_father,NULL);
-  xbt_dict_cursor_t cursor = NULL;
-  char *key;
-  int *val;
-  routing_component_t elem;
-  xbt_dict_foreach(rc->routing_sons, cursor, key, elem) {
-    _add_parse_AS(elem);
-  } 
-}
-
-/**
- * \brief Add a "AS" to the network element list
- *
- * Allows find a "AS" in any routing component
- */
-static void parse_E_platform_add_parse_AS(void) {
-  _add_parse_AS(global_routing->root);
-}
-
-/* Global Business methods */
+/* Aux Business methods */
 
 /**
- * \brief Generic method: find a route between hosts
+ * \brief Get the AS father and the first elements of the chain
  *
  * \param src the source host name 
  * \param dst the destination host name
  * 
- * walk through the routing components tree and find a route between hosts
- * by calling the differents "get_route" functions in each routing component
+ * Get the common father of the to processing units, and the first different 
+ * father in the chain
  */
-static xbt_dynar_t get_route(const char* src,const char* dst) {
+static xbt_dynar_t elements_father(const char* src,const char* dst) {
+  
+  xbt_assert0(src&&dst,"bad parameters for \"elements_father\" method");
+  
+  xbt_dynar_t result = xbt_dynar_new(sizeof(char*), NULL); // &xbt_free_ref
   
   routing_component_t src_as, dst_as;
   int index_src, index_dst, index_father_src, index_father_dst;
-  int *src_id, *dst_id;
   xbt_dynar_t path_src = NULL;
   xbt_dynar_t path_dst = NULL;
-  char *current_router_src, *current_router_dst;
   routing_component_t current = NULL;
-  routing_component_t* current_src_father;
-  routing_component_t* current_dst_father;
   routing_component_t* current_src = NULL;
   routing_component_t* current_dst = NULL;
-  routing_component_t* father;
-  route_extended_t tmp_route;
-  void* link;
-  route_extended_t route_center_links;
-  xbt_dynar_t path_src_links, path_dst_links, path_first, path_last;
-  int cpt;
-  
-  xbt_dynar_reset(global_routing->last_route);
+  routing_component_t* father = NULL;
   
-// TODO: check if the route is between hosts  
-//   xbt_assert2( ( src_ne->type == SURF_NETWORK_ELEMENT_HOST || src_ne-> == SURF_NETWORK_ELEMENT_AS )
-//             && ( src_ne->type == SURF_NETWORK_ELEMENT_HOST || src_ne-> == SURF_NETWORK_ELEMENT_AS ) ,
-//     "Invalid network elements \"%s\" or \"%s\" for make a route", src, dst);
-    
-  /* (1) find the as-routetree where the src and dst are located */
+  /* (1) find the as where the src and dst are located */
   src_as = xbt_dict_get_or_null(global_routing->where_network_elements,src);
   dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,dst); 
-  xbt_assert0(src_as != NULL && dst_as  != NULL, "Ask for route \"from\" or \"to\" no found");
+  xbt_assert2(src_as&&dst_as, "Ask for route \"from\"(%s) or \"to\"(%s) no found",src,dst);
   
-  /* (2) find the path to the root routing componen */
+  /* (2) find the path to the root routing component */
   path_src = xbt_dynar_new(sizeof(routing_component_t), NULL);
   current = src_as; 
   while( current != NULL ) {
@@ -324,113 +399,150 @@ static xbt_dynar_t get_route(const char* src,const char* dst) {
   index_dst++;
   current_src = xbt_dynar_get_ptr(path_src,index_src);
   current_dst = xbt_dynar_get_ptr(path_dst,index_dst);
+
+  /* (4) they are not in the same routing component, make the path */
+  index_father_src = index_src+1;
+  index_father_dst = index_dst+1;
+   
+  if(*current_src==*current_dst)
+    father = current_src;
+  else
+    father = xbt_dynar_get_ptr(path_src,index_father_src);
   
-  /* (4) if they are in the same routing component? */
-  if( *current_src == *current_dst ) {
+  /* (5) result generation */
+  xbt_dynar_push(result,father); // first same the father of src and dst
+  xbt_dynar_push(result,current_src); // second the first different father of src 
+  xbt_dynar_push(result,current_dst); // three  the first different father of dst
   
-    /* (5.1) belong to the same routing component */
-    xbt_assert1((*current_src)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_src)->name);
-    tmp_route = (*(*current_src)->get_route)(*current_src,src,dst);
-    xbt_assert3(tmp_route, "there is no route between \"%s\" and \"%s\" in \"%s\"",src,dst,(*current_src)->name);
-    cpt = 0;
-    xbt_dynar_foreach(tmp_route->generic_route.link_list, cpt, link) {
-      xbt_dynar_push(global_routing->last_route,&link);
-    }
-      
-  } else {
+  xbt_dynar_free(&path_src);
+  xbt_dynar_free(&path_dst);
   
-    /* (5.2) they are not in the same routetree, make the path */
-    index_father_src = index_src+1;
-    index_father_dst = index_dst+1;
-    father = xbt_dynar_get_ptr(path_src,index_father_src);
-    xbt_assert1((*father)->get_route, "Invalid \"get_route\" for \"%s\"",(*father)->name);
-    route_center_links = (*((*father)->get_route))(*father,(*current_src)->name,(*current_dst)->name);
-    xbt_assert3(route_center_links, "there is no route between \"%s\" and \"%s\" in \"%s\"",
-        (*current_src)->name,(*current_dst)->name,(*father)->name);
-    
-    /* (5.2.1) make the source path */
-    path_src_links = xbt_dynar_new(global_routing->size_of_link, NULL);
-    current_router_dst = route_center_links->src_gateway;  /* first router in the reverse path */
-    current_src_father = xbt_dynar_get_ptr(path_src,index_src);
-    index_src--;
-    for(index_src;index_src>=0;index_src--) {
-      current_src = xbt_dynar_get_ptr(path_src,index_src);
-      xbt_assert1((*current_src_father)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_src_father)->name);
-      tmp_route = (*((*current_src_father)->get_route))(*current_src_father,(*current_src)->name,current_router_dst);
-      xbt_assert3(tmp_route, "there is no route between \"%s\" and \"%s\" in \"%s\"",
-          (*current_src)->name,(*current_dst)->name,(*current_src_father)->name);
-      cpt = 0;
-      xbt_dynar_foreach(tmp_route->generic_route.link_list, cpt, link) {
-        xbt_assert2(link,"NULL link in the route from src %s to dst %s (5.2.1)", src, dst);
-        xbt_dynar_push(path_src_links,&link);
-      }
-      current_router_dst = tmp_route->src_gateway;
-      current_src_father = current_src;
-    }
+  return result;
+}
+
+/* Global Business methods */
+
+/**
+ * \brief Recursive function for get_route
+ *
+ * \param src the source host name 
+ * \param dst the destination host name
+ * 
+ * This fuction is call by "get_route". It allow to walk through the 
+ * routing components tree.
+ */
+static route_extended_t _get_route(const char* src,const char* dst) {
+  
+  void* link;
+  unsigned int cpt=0;
+  
+  DEBUG2("Solve route  \"%s\" to \"%s\"",src,dst);
+     
+  xbt_assert0(src&&dst,"bad parameters for \"_get_route\" method");
+  
+  route_extended_t e_route, e_route_cnt, e_route_src, e_route_dst;
+  
+  xbt_dynar_t elem_father_list = elements_father(src,dst);
+  
+  routing_component_t common_father = xbt_dynar_get_as(elem_father_list, 0, routing_component_t);
+  routing_component_t src_father    = xbt_dynar_get_as(elem_father_list, 1, routing_component_t);
+  routing_component_t dst_father    = xbt_dynar_get_as(elem_father_list, 2, routing_component_t);
+  
+  e_route = xbt_new0(s_route_extended_t,1);
+  e_route->src_gateway = NULL;
+  e_route->dst_gateway = NULL;
+  e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+  
+  if(src_father==dst_father) { /* SURF_ROUTING_BASE */
     
-    /* (5.2.2) make the destination path */
-    path_dst_links = xbt_dynar_new(global_routing->size_of_link, NULL);
-    current_router_src = route_center_links->dst_gateway;  /* last router in the reverse path */
-    current_dst_father = xbt_dynar_get_ptr(path_dst,index_dst);
-    index_dst--;
-    for(index_dst;index_dst>=0;index_dst--) {
-      current_dst = xbt_dynar_get_ptr(path_dst,index_dst);
-      xbt_assert1((*current_dst_father)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_dst_father)->name);
-      tmp_route = (*((*current_dst_father)->get_route))(*current_dst_father,current_router_src,(*current_dst)->name);
-      xbt_assert3(tmp_route, "there is no route between \"%s\" and \"%s\" in \"%s\"",
-          (*current_src)->name,(*current_dst)->name,(*current_dst_father)->name);
-      cpt = 0;
-      xbt_dynar_foreach(tmp_route->generic_route.link_list, cpt, link) {
-        xbt_assert2(link,"NULL link in the route from src %s to dst %s (5.2.1)", src, dst);
-        xbt_dynar_push(path_dst_links,&link);
+    if( strcmp(src,dst) ){
+      e_route_cnt = (*(common_father->get_route))(common_father,src,dst);
+      xbt_assert2(e_route_cnt,"no route between \"%s\" and \"%s\"",src,dst);
+      xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
+        xbt_dynar_push(e_route->generic_route.link_list,&link);
       }
-      current_router_src = tmp_route->dst_gateway;
-      current_dst_father = current_dst;
+      xbt_dynar_free( &(e_route_cnt->generic_route.link_list) );
+      xbt_free(e_route_cnt);
     }
     
-    /* (5.2.3) the first part of the route */
-    xbt_assert1((*current_src)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_src)->name);
-    path_first = ((*((*current_src)->get_route))(*current_src,src,current_router_dst))->generic_route.link_list;
-    xbt_assert3(path_first, "there is no route between \"%s\" and \"%s\" in \"%s\"",
-        src,current_router_dst,(*current_src)->name);
-    
-    /* (5.2.4) the last part of the route */
-    xbt_assert1((*current_dst)->get_route, "Invalid \"get_route\" for \"%s\"",(*current_dst)->name);
-    path_last  = ((*((*current_dst)->get_route))(*current_dst,current_router_src,dst))->generic_route.link_list;
-    xbt_assert3(path_last, "there is no route between \"%s\" and \"%s\" in \"%s\"",
-        current_router_src,dst,(*current_dst)->name);
+  } else { /* SURF_ROUTING_RECURSIVE */
+
+    route_extended_t e_route_bypass = (*(common_father->get_bypass_route))(common_father,src,dst);
     
-    /* (5.2.5) make all paths together */
-    // FIXME: the paths non respect the right order
+    if(e_route_bypass)
+      e_route_cnt = e_route_bypass;    
+    else
+      e_route_cnt = (*(common_father->get_route))(common_father,src_father->name,dst_father->name);
     
-    cpt = 0;
-    xbt_dynar_foreach(path_first, cpt, link) {
-      xbt_dynar_push(global_routing->last_route,&link);
-    }
-    cpt = 0;
-    xbt_dynar_foreach(path_src_links, cpt, link) {
-      xbt_dynar_push(global_routing->last_route,&link);
-    }
-    cpt = 0;
-    xbt_dynar_foreach(route_center_links->generic_route.link_list, cpt, link) {
-      xbt_dynar_push(global_routing->last_route,&link);
+    xbt_assert2(e_route_cnt,"no route between \"%s\" and \"%s\"",src_father->name,dst_father->name);
+
+    xbt_assert2( (e_route_cnt->src_gateway==NULL) == (e_route_cnt->dst_gateway==NULL) ,
+      "bad gateway for route between \"%s\" and \"%s\"",src,dst);
+
+    if( src != e_route_cnt->src_gateway ) {
+      e_route_src = _get_route(src,e_route_cnt->src_gateway);
+      xbt_assert2(e_route_src,"no route between \"%s\" and \"%s\"",src,e_route_cnt->src_gateway);
+      xbt_dynar_foreach(e_route_src->generic_route.link_list, cpt, link) {
+        xbt_dynar_push(e_route->generic_route.link_list,&link);
+      }
     }
-    cpt = 0;
-    xbt_dynar_foreach(path_dst_links, cpt, link) {
-      xbt_dynar_push(global_routing->last_route,&link);
+    
+    xbt_dynar_foreach(e_route_cnt->generic_route.link_list, cpt, link) {
+      xbt_dynar_push(e_route->generic_route.link_list,&link);
     }
-    cpt = 0;
-    xbt_dynar_foreach(path_last, cpt, link) {
-      xbt_dynar_push(global_routing->last_route,&link);
+    
+    if( e_route_cnt->dst_gateway != dst ) {
+      e_route_dst = _get_route(e_route_cnt->dst_gateway,dst);
+      xbt_assert2(e_route_dst,"no route between \"%s\" and \"%s\"",e_route_cnt->dst_gateway,dst);
+      xbt_dynar_foreach(e_route_dst->generic_route.link_list, cpt, link) {
+        xbt_dynar_push(e_route->generic_route.link_list,&link);
+      }
     }
     
-    xbt_dynar_free(&path_src_links);
-    xbt_dynar_free(&path_dst_links);
+    e_route->src_gateway = e_route_cnt->src_gateway;
+    e_route->dst_gateway = e_route_cnt->dst_gateway;
+
+    xbt_dynar_free( &(e_route_src->generic_route.link_list) );
+    xbt_free(e_route_src);
+    xbt_dynar_free( &(e_route_cnt->generic_route.link_list) );
+    xbt_free(e_route_cnt);
+    xbt_dynar_free( &(e_route_dst->generic_route.link_list) );
+    xbt_free(e_route_dst);
   }
   
-  xbt_dynar_free(&path_src);
-  xbt_dynar_free(&path_dst); 
-         
+  xbt_dynar_free(&elem_father_list);
+  
+  return e_route; 
+}
+
+/**
+ * \brief Generic method: find a route between hosts
+ *
+ * \param src the source host name 
+ * \param dst the destination host name
+ * 
+ * walk through the routing components tree and find a route between hosts
+ * by calling the differents "get_route" functions in each routing component
+ */
+static xbt_dynar_t get_route(const char* src,const char* dst) {
+  
+  if(global_routing->last_route) xbt_dynar_free( &(global_routing->last_route) );
+  
+  route_extended_t e_route;
+  xbt_dynar_t elem_father_list = elements_father(src,dst);
+  routing_component_t common_father = xbt_dynar_get_as(elem_father_list, 0, routing_component_t);
+  
+  if(strcmp(src,dst))
+    e_route = _get_route(src,dst);
+  else
+    e_route = (*(common_father->get_route))(common_father,src,dst);
+  
+  xbt_assert2(e_route,"no route between \"%s\" and \"%s\"",src,dst);
+  global_routing->last_route = e_route->generic_route.link_list;
+  xbt_free(e_route);
+  xbt_dynar_free(&elem_father_list);
+  
   if( xbt_dynar_length(global_routing->last_route)==0 )
     return NULL;
   else
@@ -457,6 +569,7 @@ static void _finalize(routing_component_t rc) {
     char* tmp_name = rc->name;
     xbt_dict_free(&tmp_sons);
     xbt_free(tmp_name);
+    xbt_assert1(rc->finalize,"no defined method \"finalize\" in \"%s\"",current_routing->name);
     (*(rc->finalize))(rc);
   }
 }
@@ -501,37 +614,30 @@ void routing_model_create(size_t size_of_links, void* loopback) {
   /* parse generic elements */
   surfxml_add_callback(STag_surfxml_host_cb_list, &parse_S_host);
   surfxml_add_callback(STag_surfxml_router_cb_list, &parse_S_router);
-  surfxml_add_callback(STag_surfxml_gateway_cb_list, &parse_S_gateway);
 
-  /* parse generic elements */
+  surfxml_add_callback(STag_surfxml_route_cb_list, &parse_S_route_new_and_endpoints);
+  surfxml_add_callback(STag_surfxml_ASroute_cb_list, &parse_S_ASroute_new_and_endpoints);
+  surfxml_add_callback(STag_surfxml_bypassRoute_cb_list, &parse_S_bypassRoute_new_and_endpoints);
+  
+  surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &parse_E_link_c_ctn_new_elem);
+  
+  surfxml_add_callback(ETag_surfxml_route_cb_list, &parse_E_route_store_route);
+  surfxml_add_callback(ETag_surfxml_ASroute_cb_list, &parse_E_ASroute_store_route);
+  surfxml_add_callback(ETag_surfxml_bypassRoute_cb_list, &parse_E_bypassRoute_store_route);
+  
   surfxml_add_callback(STag_surfxml_AS_cb_list, &parse_S_AS);
   surfxml_add_callback(ETag_surfxml_AS_cb_list, &parse_E_AS);
-
-  /* set all the as in the global where table (recursive fuction) */
-  surfxml_add_callback(ETag_surfxml_platform_cb_list, &parse_E_platform_add_parse_AS);
   
   /* DEBUG ONLY */  
-  surfxml_add_callback(ETag_surfxml_platform_cb_list, &DEGUB_exit);
-
+  //surfxml_add_callback(ETag_surfxml_platform_cb_list, &DEBUG_exit);
+  
+  // TODO checked if ANY AS are duplicated
 }
 
-/* ************************************************************************** */
-/* ***************** GENERIC PARSE FUNCTIONS (declarations) ***************** */
-
-static char* src = NULL;    /* temporary store the source name of a route */
-static char* dst = NULL;    /* temporary store the destination name of a route */
-static char* gw_src = NULL; /* temporary store the gateway source name of a route */
-static char* gw_dst = NULL; /* temporary store the gateway destination name of a route */
-static xbt_dynar_t link_list = NULL; /* temporary store of current list link of a route */ 
-
-static void generic_parse_S_route_new_and_endpoints(void);
-static void generic_E_link_c_ctn_new_elem(void);
-static void generic_parse_E_route_store_route(void);
-
 /* ************************************************************************** */
 /* *************************** FULL ROUTING ********************************* */
 
-#define TO_ROUTE_FULL(i,j,rc) ((routing_component_full_t)rc)->routing_table[(i)+(j)*xbt_dict_length(((routing_component_full_t)rc)->to_index)]
+#define TO_ROUTE_FULL(i,j) routing->routing_table[(i)+(j)*table_size]
 
 /* Routing model structure */
 
@@ -539,104 +645,55 @@ typedef struct {
   s_routing_component_t generic_routing;
   xbt_dict_t parse_routes; /* store data during the parse process */
   xbt_dict_t to_index; /* char* -> network_element_t */
+  xbt_dict_t bypassRoutes;
   route_extended_t *routing_table;
 } s_routing_component_full_t,*routing_component_full_t;
 
-/* Parse routing model functions */
-
-static void full_parse_S_host(void) {
-  network_element_t ne = xbt_new0(s_network_element_t,1);
-  ne->id = xbt_dict_length(((routing_component_full_t)current_routing)->to_index);
-  ne->type = SURF_NETWORK_ELEMENT_HOST;
-  xbt_dict_set(((routing_component_full_t)current_routing)->to_index,A_surfxml_host_id,ne,xbt_free);
-}
-
-static void full_parse_S_gateway(void) {
-  network_element_t ne = xbt_new0(s_network_element_t,1);
-  ne->id = xbt_dict_length(((routing_component_full_t)current_routing)->to_index);
-  ne->type = SURF_NETWORK_ELEMENT_GATEWAY;
-  xbt_dict_set(((routing_component_full_t)current_routing)->to_index,A_surfxml_gateway_id,ne,xbt_free);
-}
-
 /* Business methods */
 
 static route_extended_t full_get_route(routing_component_t rc, const char* src,const char* dst) {
+  xbt_assert1(rc&&src&&dst, "Invalid params for \"get_route\" function at AS \"%s\"",rc->name);
   
-  xbt_assert1(src && dst, "Invalid params for \"get_route\" function at AS \"%s\"",rc->name);
-  
-  routing_component_full_t src_as, dst_as;
-  int src_id,dst_id;
-  network_element_t ne_src,ne_dst;
-  
-  // FIXME: here we can use the current_routing var.
-  src_as = xbt_dict_get_or_null(global_routing->where_network_elements,src);
-  dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,dst);
-  
-  xbt_assert0(src_as != NULL && dst_as  != NULL, "Ask for route \"from\" or \"to\" no found");
-  xbt_assert0(src_as == dst_as, "The src and dst are in differents AS");
-  xbt_assert0((routing_component_full_t)rc == dst_as,
-     "The routing component of src and dst is not the same as the network elements belong");
-  
-  ne_src = (network_element_t) xbt_dict_get(src_as->to_index,src);
-  ne_dst = (network_element_t) xbt_dict_get(dst_as->to_index,dst);
-  
-  src_id = ne_src->id;
-  dst_id = ne_dst->id;
-  
-  xbt_assert0(ne_src != NULL && ne_dst  != NULL, "Ask for route \"from\" or \"to\" no found in the local table"); 
+  /* set utils vars */
+  routing_component_full_t routing = (routing_component_full_t)rc;
+  int table_size = xbt_dict_length(routing->to_index);
   
-  if( xbt_dynar_length(TO_ROUTE_FULL(src_id,dst_id,src_as)->generic_route.link_list) > 0 )
-    return TO_ROUTE_FULL(src_id,dst_id,src_as);
-  else
-    return NULL;
-}
+  generic_src_dst_check(rc,src,dst);
+  int *src_id = xbt_dict_get_or_null(routing->to_index,src);
+  int *dst_id = xbt_dict_get_or_null(routing->to_index,dst);
+  xbt_assert2(src_id && dst_id, "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",src,dst); 
 
-static xbt_dict_t full_get_network_elements(routing_component_t rc, e_surf_network_element_type_t req_type)
-{
-  routing_component_full_t routing = (routing_component_full_t)rc;
-  xbt_dict_t result = xbt_dict_new();
-  xbt_dict_cursor_t cursor = NULL;
-  char *key;
-  network_element_t ne;
-  // TODO: do the next (the AS_GATEWAY are definened in the AS in the this_AS)
-  if(req_type == SURF_NETWORK_ELEMENT_AS_GATEWAY ) {
-    xbt_assert0(0, "NOT IMPLEMENTED YET");
-  }
-  // TODO: do the next (the links are not defined for the routing)
-  if(req_type == SURF_NETWORK_ELEMENT_LINK ) {
-    xbt_assert0(0, "NOT IMPLEMENTED YET");
-  }
-  // TODO: do the next (the routers are not defined for this type of routing)
-  if(req_type == SURF_NETWORK_ELEMENT_ROUTER ) {
-    xbt_assert0(0, "NOT IMPLEMENTED YET");
-  }
+  route_extended_t e_route = NULL;
+  route_extended_t new_e_route = NULL;
+  void* link;
+  unsigned int cpt=0;
+
+  e_route = TO_ROUTE_FULL(*src_id,*dst_id);
   
-  xbt_dict_foreach(routing->to_index, cursor, key, ne) {
-    if( req_type == SURF_NETWORK_ELEMENT_NULL || req_type == ne->type ) {
-      e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
-      *new_type = ne->type;
-      xbt_dict_set(result,key,new_type,xbt_free);
+  if(e_route) {
+    new_e_route = xbt_new0(s_route_extended_t,1);
+    new_e_route->src_gateway = e_route->src_gateway;
+    new_e_route->dst_gateway = e_route->dst_gateway;
+    new_e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+    xbt_dynar_foreach(e_route->generic_route.link_list, cpt, link) {
+      xbt_dynar_push(new_e_route->generic_route.link_list,&link);
     }
   }
-  return result;
+  return new_e_route;
 }
 
 static void full_finalize(routing_component_t rc) {
   routing_component_full_t routing = (routing_component_full_t)rc;
+  int table_size = xbt_dict_length(routing->to_index);
   int i,j;
   if (routing) {
-    int table_size = xbt_dict_length(routing->to_index);
     /* Delete routing table */
-    for (i=0;i<table_size;i++) {
-      for (j=0;j<table_size;j++) {
-        route_extended_t e_route = TO_ROUTE_FULL(i,j,rc);
-        xbt_dynar_free(&(e_route->generic_route.link_list));
-        if(e_route->src_gateway) xbt_free(e_route->src_gateway);
-        if(e_route->dst_gateway) xbt_free(e_route->dst_gateway);
-        xbt_free(e_route);
-      }
-    }
+    for (i=0;i<table_size;i++)
+      for (j=0;j<table_size;j++)
+        generic_free_extended_route(TO_ROUTE_FULL(i,j));
     xbt_free(routing->routing_table);
+    /* Delete bypass dict */
+    xbt_dict_free(&routing->bypassRoutes);
     /* Delete index dict */
     xbt_dict_free(&(routing->to_index));
     /* Delete structure */
@@ -646,133 +703,89 @@ static void full_finalize(routing_component_t rc) {
 
 /* Creation routing model functions */
 
-static void* model_full_create() {
+static void* model_full_create(void) {
   routing_component_full_t new_component =  xbt_new0(s_routing_component_full_t,1);
+  new_component->generic_routing.set_processing_units = generic_set_processing_units;
+  new_component->generic_routing.set_autonomous_system = generic_set_autonomous_system;
+  new_component->generic_routing.set_route = generic_set_route;
+  new_component->generic_routing.set_ASroute = generic_set_ASroute;
+  new_component->generic_routing.set_bypassroute = generic_set_bypassroute;
   new_component->generic_routing.get_route = full_get_route;
+  new_component->generic_routing.get_bypass_route = generic_get_bypassroute;
   new_component->generic_routing.finalize = full_finalize;
-  new_component->generic_routing.get_network_elements = full_get_network_elements;
   new_component->to_index = xbt_dict_new();
+  new_component->bypassRoutes = xbt_dict_new();
   new_component->parse_routes = xbt_dict_new();
   return new_component;
 }
 
-static void model_full_load() {
-  surfxml_add_callback(STag_surfxml_host_cb_list, &full_parse_S_host);
-  surfxml_add_callback(STag_surfxml_gateway_cb_list, &full_parse_S_gateway);
-  surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &generic_E_link_c_ctn_new_elem);
-  surfxml_add_callback(STag_surfxml_route_cb_list, &generic_parse_S_route_new_and_endpoints);
-  surfxml_add_callback(ETag_surfxml_route_cb_list, &generic_parse_E_route_store_route);
+static void model_full_load(void) {
+ /* use "surfxml_add_callback" to add a parse function call */
 }
 
-static void model_full_unload() {
-  surfxml_del_callback(&STag_surfxml_host_cb_list, &full_parse_S_host);
-  surfxml_del_callback(&STag_surfxml_gateway_cb_list, &full_parse_S_gateway);
-  surfxml_del_callback(&ETag_surfxml_link_c_ctn_cb_list, &generic_E_link_c_ctn_new_elem);
-  surfxml_del_callback(&STag_surfxml_route_cb_list, &generic_parse_S_route_new_and_endpoints);
-  surfxml_del_callback(&ETag_surfxml_route_cb_list, &generic_parse_E_route_store_route);
+static void model_full_unload(void) {
+ /* use "surfxml_del_callback" to remove a parse function call */
 }
 
-static void  model_full_end() {
-
-  char *key, *end, *link_name, *src_name, *dst_name,  *src_gw_name, *dst_gw_name;
+static void  model_full_end(void) {
+  
+  char *key, *end; //*src_name, *dst_name
   const char* sep = "#";
-  network_element_t src_id, dst_id, src_gw_id, dst_gw_id, ne;
-  route_extended_t new_e_route;
-  int i, j, cpt;
-  routing_component_t component;
-  xbt_dynar_t links;
+  int src_id, dst_id;
+  unsigned int i, j;
+  route_t route;
+  route_extended_t e_route;
+  void* data;
+  
   xbt_dict_cursor_t cursor = NULL;
   xbt_dynar_t keys = NULL;
-  routing_component_t src_as;
-  routing_component_t dst_as;
-  routing_component_full_t routing = ((routing_component_full_t)current_routing);
-
-  /* Add the AS found to local components  */
-  xbt_dict_foreach(current_routing->routing_sons, cursor, key, component) {
-    ne = xbt_new0(s_network_element_t,1);
-    ne->id = xbt_dict_length(routing->to_index);
-    ne->type = SURF_NETWORK_ELEMENT_AS;
-    xbt_dict_set(routing->to_index,key,ne,xbt_free);
-  }
   
+  /* set utils vars */
+  routing_component_full_t routing = ((routing_component_full_t)current_routing);
   int table_size = xbt_dict_length(routing->to_index);
   
   /* Create the routing table */
   routing->routing_table = xbt_new0(route_extended_t, table_size * table_size);
-  for (i=0;i<table_size;i++) {
-    for (j=0;j<table_size;j++) {
-      new_e_route = xbt_new0(s_route_extended_t,1);
-      new_e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
-      new_e_route->src_gateway = NULL;
-      new_e_route->dst_gateway = NULL;
-      TO_ROUTE_FULL(i,j,current_routing) = new_e_route;
-    }
-  }
   
   /* Put the routes in position */
-  xbt_dict_foreach(routing->parse_routes, cursor, key, links) {
-    
+  xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
     keys = xbt_str_split_str(key, sep);
+    src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 10);
+    dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 10);
+    TO_ROUTE_FULL(src_id,dst_id) = generic_new_extended_route(current_routing->hierarchy,data,1);
+     xbt_dynar_free(&keys);
+   }
 
-    src_name    = xbt_dynar_get_as(keys, 0, char*);
-    dst_name    = xbt_dynar_get_as(keys, 1, char*);
-    src_gw_name = xbt_dynar_get_as(keys, 2, char*);
-    dst_gw_name = xbt_dynar_get_as(keys, 3, char*);
-      
-    src_id = xbt_dict_get_or_null(routing->to_index, src_name);
-    dst_id = xbt_dict_get_or_null(routing->to_index, dst_name);
-    
-    if (src_id == NULL || dst_id == NULL )
-      THROW2(mismatch_error,0,"Network elements %s or %s not found", src_name, dst_name);
-    
-    if( strlen(src_gw_name) != 0 ) {
-      src_as = xbt_dict_get_or_null(global_routing->where_network_elements,src_gw_name);
-      if (src_as == NULL)
-        THROW1(mismatch_error,0,"Network elements %s not found", src_gw_name);
-    } else {
-      src_gw_name = NULL; // FIXME: maybe here put the same src_name.
-    }
-    
-    if( strlen(dst_gw_name) != 0 ) {
-      dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,dst_gw_name);
-      if (dst_as == NULL)
-        THROW1(mismatch_error,0,"Network elements %s not found", dst_gw_name);
-    } else {
-      dst_gw_name = NULL; // FIXME: maybe here put the same dst_name.
-    }
-    
-    TO_ROUTE_FULL(src_id->id,dst_id->id,current_routing)->src_gateway = xbt_strdup(src_gw_name);
-    TO_ROUTE_FULL(src_id->id,dst_id->id,current_routing)->dst_gateway = xbt_strdup(dst_gw_name);
-    
-    xbt_dynar_foreach(links, cpt, link_name) {
-      void* link = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
-      if (link)
-        xbt_dynar_push(TO_ROUTE_FULL(src_id->id,dst_id->id,current_routing)->generic_route.link_list,&link);
-      else
-        THROW1(mismatch_error,0,"Link %s not found", link_name);
-    }
-
-   // xbt_dynar_free(&links);
-    xbt_dynar_free(&keys);
-  }
    /* delete the parse table */
-  xbt_dict_foreach(routing->parse_routes, cursor, key, links) {
-    xbt_dynar_free(&links);
+  xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
+    route = (route_t)data;
+    xbt_dynar_free(&(route->link_list));
+    xbt_free(data);
   }
+      
   /* delete parse dict */
   xbt_dict_free(&(routing->parse_routes));
 
   /* Add the loopback if needed */
-  for (i = 0; i < table_size; i++)
-    if (!xbt_dynar_length(TO_ROUTE_FULL(i, i,current_routing)->generic_route.link_list))
-      xbt_dynar_push(TO_ROUTE_FULL(i,i,current_routing)->generic_route.link_list,&global_routing->loopback);
+  if(current_routing->hierarchy == SURF_ROUTING_BASE) {
+    for (i = 0; i < table_size; i++) {
+      e_route = TO_ROUTE_FULL(i, i);
+      if(!e_route) { // && !xbt_dynar_length(e_route->generic_route.link_list)
+        e_route = xbt_new0(s_route_extended_t,1);
+        e_route->src_gateway = NULL;
+        e_route->dst_gateway = NULL;
+        e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+        xbt_dynar_push(e_route->generic_route.link_list,&global_routing->loopback);
+        TO_ROUTE_FULL(i, i) = e_route;
+      }
+    }
+  }
 
   /* Shrink the dynar routes (save unused slots) */
   for (i=0;i<table_size;i++)
     for (j=0;j<table_size;j++)
-      xbt_dynar_shrink(TO_ROUTE_FULL(i,j,current_routing)->generic_route.link_list,0);
+      if(TO_ROUTE_FULL(i,j))
+       xbt_dynar_shrink(TO_ROUTE_FULL(i,j)->generic_route.link_list,0);
 }
 
 /* ************************************************************************** */
@@ -781,338 +794,201 @@ static void  model_full_end() {
 #define TO_FLOYD_COST(i,j) cost_table[(i)+(j)*table_size]
 #define TO_FLOYD_PRED(i,j) (routing->predecessor_table)[(i)+(j)*table_size]
 #define TO_FLOYD_LINK(i,j) (routing->link_table)[(i)+(j)*table_size]
-#define TO_FLOYD_AS(i,j)   (routing->AS_table)[(i)+(j)*AS_table_size]
 
 /* Routing model structure */
 
 typedef struct {
   s_routing_component_t generic_routing;
-  route_extended_t last_route;
   /* vars for calculate the floyd algorith. */
   int *predecessor_table;
-  void** link_table; /* char* -> network_element_t* */
-  xbt_dict_t predecessor_to_index;
-  /* store information to solve any AS route */
-  xbt_dict_t AS_to_index; /* char* -> network_element_t* */
-  route_limits_t AS_table;
+  route_extended_t *link_table; /* char* -> int* */
+  xbt_dict_t to_index;
+  xbt_dict_t bypassRoutes;
   /* store data during the parse process */  
   xbt_dict_t parse_routes; 
-  
 } s_routing_component_floyd_t,*routing_component_floyd_t;
 
-/* Parse routing model functions */
-
-static void floyd_parse_S_host(void) {
-  network_element_t ne = xbt_new0(s_network_element_t,1);
-  ne->id = xbt_dict_length(((routing_component_floyd_t)current_routing)->predecessor_to_index);
-  ne->type = SURF_NETWORK_ELEMENT_HOST;
-  xbt_dict_set(((routing_component_floyd_t)current_routing)->predecessor_to_index,A_surfxml_host_id,ne,xbt_free);
-}
-
-static void floyd_parse_S_gateway(void) {
-  network_element_t ne = xbt_new0(s_network_element_t,1);
-  ne->id = xbt_dict_length(((routing_component_floyd_t)current_routing)->predecessor_to_index);
-  ne->type = SURF_NETWORK_ELEMENT_GATEWAY;
-  xbt_dict_set(((routing_component_floyd_t)current_routing)->predecessor_to_index,A_surfxml_gateway_id,ne,xbt_free);
-}
-
-static void floyd_parse_S_router(void) {
-  network_element_t ne = xbt_new0(s_network_element_t,1);
-  ne->id = xbt_dict_length(((routing_component_floyd_t)current_routing)->predecessor_to_index);
-  ne->type = SURF_NETWORK_ELEMENT_ROUTER;
-  xbt_dict_set(((routing_component_floyd_t)current_routing)->predecessor_to_index,A_surfxml_router_id,ne,xbt_free);
-}
-
-/* Business methods */
+/* Business methods */
 
 static route_extended_t floyd_get_route(routing_component_t rc, const char* src,const char* dst) {
-  
-  xbt_assert1(src && dst, "Invalid params for \"get_route\" function at AS \"%s\"",rc->name);
+  xbt_assert1(rc&&src&&dst, "Invalid params for \"get_route\" function at AS \"%s\"",rc->name);
   
   /* set utils vars */
   routing_component_floyd_t routing = (routing_component_floyd_t) rc;
-  int table_size = xbt_dict_length(routing->predecessor_to_index);
-  int AS_table_size;
-  /* clear the last route */
-  xbt_dynar_reset(routing->last_route->generic_route.link_list);
-  if(routing->last_route->src_gateway) xbt_free(routing->last_route->src_gateway);
-  if(routing->last_route->dst_gateway) xbt_free(routing->last_route->dst_gateway);
-  routing->last_route->src_gateway = NULL; 
-  routing->last_route->dst_gateway = NULL;
-  
-  /* find the network elements for make a route */
-  network_element_t dst_ne = xbt_dict_get_or_null(routing->predecessor_to_index, dst);
-  network_element_t src_ne = xbt_dict_get_or_null(routing->predecessor_to_index, src);
-  network_element_t src_ne_AS, dst_ne_AS;
-  
-  /* if some network element is a AS, I need to find the adecuate gateway for the route */
-  if(!src_ne || !dst_ne ) {
-    xbt_assert1(routing->AS_to_index, "AS table not found (\"%s\")",rc->name);
-    AS_table_size = xbt_dict_length(routing->AS_to_index);
-    src_ne_AS = xbt_dict_get_or_null(routing->AS_to_index, src);
-    dst_ne_AS = xbt_dict_get_or_null(routing->AS_to_index, dst);
-    xbt_assert2(src_ne_AS && dst_ne_AS, "Attempt to make a route between a hosts element and a AS (\"%s\",\"%s\")",src,dst);
-    route_limits_t limits = &TO_FLOYD_AS(src_ne_AS->id,dst_ne_AS->id);
-    if(!src_ne) routing->last_route->src_gateway = xbt_strdup(limits->src_gateway);
-    if(!dst_ne) routing->last_route->dst_gateway = xbt_strdup(limits->dst_gateway);
-    dst_ne = xbt_dict_get_or_null(routing->predecessor_to_index, limits->dst_gateway);
-    src_ne = xbt_dict_get_or_null(routing->predecessor_to_index, limits->src_gateway);
-  }
-
-  xbt_assert2(src_ne != NULL || dst_ne != NULL,
-    "Invalid network elements \"%s\" or \"%s\" not found", src, dst);
+  int table_size = xbt_dict_length(routing->to_index);
   
-  int src_id = src_ne->id;
-  int dst_id = dst_ne->id;
-    
-  int pred = dst_id;
+  generic_src_dst_check(rc,src,dst);
+  int *src_id = xbt_dict_get_or_null(routing->to_index,src);
+  int *dst_id = xbt_dict_get_or_null(routing->to_index,dst);
+  xbt_assert2(src_id && dst_id, "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",src,dst); 
+  
+  /* create a result route */
+  route_extended_t new_e_route = xbt_new0(s_route_extended_t,1);
+  new_e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+  new_e_route->src_gateway = NULL;
+  new_e_route->dst_gateway = NULL;
+  
+  int first = 1;
+  int pred = *dst_id;
   int prev_pred = 0;
+  char *gw_src,*gw_dst, *prev_gw_src,*prev_gw_dst, *first_gw;
+  unsigned int cpt;
+  void* link;
+  xbt_dynar_t links;
   
   do {
     prev_pred = pred;
-    pred = TO_FLOYD_PRED(src_id, pred);
-
+    pred = TO_FLOYD_PRED(*src_id, pred);
     if(pred == -1) // if no pred in route -> no route to host
-        break;
-    
+      break;      
     xbt_assert2(TO_FLOYD_LINK(pred,prev_pred),"Invalid link for the route between \"%s\" or \"%s\"", src, dst);
     
-    xbt_dynar_unshift(routing->last_route->generic_route.link_list, &(TO_FLOYD_LINK(pred,prev_pred)));
-
-  } while(pred != src_id);
-
-  xbt_assert4(pred != -1, "no route from host %d to %d (\"%s\" to \"%s\")", src_id, dst_id,src,dst);
-  
-  if( xbt_dynar_length(routing->last_route->generic_route.link_list) > 0 )
-    return routing->last_route;
-  else
-    return NULL;
-}
-
-static xbt_dict_t floyd_get_network_elements(routing_component_t rc, e_surf_network_element_type_t req_type)
-{
-  routing_component_floyd_t routing = (routing_component_floyd_t)rc;
-  xbt_dict_t result = xbt_dict_new();
-  xbt_dict_cursor_t cursor = NULL;
-  char *key;
-  network_element_t ne;
-  // TODO: do the next (the AS_GATEWAY are definened in the AS in the this_AS)
-  if(req_type == SURF_NETWORK_ELEMENT_AS_GATEWAY ) {
-    xbt_assert0(0, "NOT IMPLEMENTED YET");
-  }
-  // TODO: do the next (the links are not defined for the routing)
-  if(req_type == SURF_NETWORK_ELEMENT_LINK ) {
-    xbt_assert0(0, "NOT IMPLEMENTED YET");
-  }
-  // TODO: do the next (the routers are defined into predecessor_to_index)
-  if(req_type == SURF_NETWORK_ELEMENT_ROUTER ) {
-    xbt_assert0(0, "NOT IMPLEMENTED YET");
-  }
-  
-  if( req_type == SURF_NETWORK_ELEMENT_NULL || req_type == SURF_NETWORK_ELEMENT_HOST ) {
-    xbt_dict_foreach(routing->predecessor_to_index, cursor, key, ne) {
-      if( ne->type == SURF_NETWORK_ELEMENT_HOST) {
-        e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
-        *new_type = ne->type;
-        xbt_dict_set(result,key,new_type,xbt_free);
+    prev_gw_src = gw_src;
+    prev_gw_dst = gw_dst;
+    
+    route_extended_t e_route = TO_FLOYD_LINK(pred,prev_pred);
+    gw_src = e_route->src_gateway;
+    gw_dst = e_route->dst_gateway;
+    
+    if(first) first_gw = gw_dst;
+    
+    if(rc->hierarchy == SURF_ROUTING_RECURSIVE && !first && strcmp(gw_dst,prev_gw_src)) {
+      //routing_component_t src_as = xbt_dict_get_or_null(global_routing->where_network_elements,gw_dst);
+      //routing_component_t dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,prev_gw_src);
+      //xbt_assert4(src_as==dst_as,"bad routing, differents AS gateways in route \"%s\" to \"%s\" (\"%s\"-\"%s\")",src,dst,gw_dst,prev_gw_src);
+      //route_extended_t e_route_as_to_as = (*(src_as->get_route))(src_as,gw_dst,prev_gw_src);
+      // TODO: - check for error - is possible to generate a route like =  as----as----as
+      xbt_dynar_t e_route_as_to_as = (*(global_routing->get_route))(gw_dst,prev_gw_src);
+      xbt_assert2(e_route_as_to_as,"no route between \"%s\" and \"%s\"",gw_dst,prev_gw_src);
+      //links = e_route_as_to_as->generic_route.link_list;
+      links = e_route_as_to_as;
+      int pos = 0;
+      xbt_dynar_foreach(links, cpt, link) {
+        xbt_dynar_insert_at(new_e_route->generic_route.link_list,pos,&link);
+        pos++;
       }
+//       xbt_dynar_free(&(e_route_as_to_as->generic_route.link_list));
+//       xbt_free(e_route_as_to_as);
     }
-  }
-  
-  if( req_type == SURF_NETWORK_ELEMENT_NULL || req_type == SURF_NETWORK_ELEMENT_AS || req_type == SURF_NETWORK_ELEMENT_GATEWAY ) {
-    xbt_dict_foreach(routing->predecessor_to_index, cursor, key, ne) {
-      if( req_type == SURF_NETWORK_ELEMENT_NULL || req_type == ne->type ) {
-        e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
-        *new_type = ne->type;
-        xbt_dict_set(result,key,new_type,xbt_free);
-      }
+    
+    links = e_route->generic_route.link_list;
+    xbt_dynar_foreach(links, cpt, link) {
+      xbt_dynar_unshift(new_e_route->generic_route.link_list,&link);
     }
+    first=0;
+    
+  } while(pred != *src_id);
+  xbt_assert4(pred != -1, "no route from host %d to %d (\"%s\" to \"%s\")", *src_id, *dst_id,src,dst);
+  
+  if(rc->hierarchy == SURF_ROUTING_RECURSIVE) {
+    new_e_route->src_gateway = gw_src;
+    new_e_route->dst_gateway = first_gw;
   }
-  return result;
+  
+  return new_e_route;
 }
 
 static void floyd_finalize(routing_component_t rc) {
-  routing_component_floyd_t routing = (routing_component_floyd_t)rc;
-  int i,j,AS_table_size;
+   routing_component_floyd_t routing = (routing_component_floyd_t)rc;
+  int i,j,table_size;
   if (routing) {
+    table_size = xbt_dict_length(routing->to_index);
+    /* Delete link_table */
+    for (i=0;i<table_size;i++)
+      for (j=0;j<table_size;j++)
+        generic_free_extended_route(TO_FLOYD_LINK(i,j));
+    xbt_free(routing->link_table);
+    /* Delete bypass dict */
+    xbt_dict_free(&routing->bypassRoutes);
+    /* Delete index dict */
+    xbt_dict_free(&(routing->to_index));
     /* Delete dictionary index dict, predecessor and links table */
     xbt_free(routing->predecessor_table);
-    xbt_dict_free(&(routing->predecessor_to_index));
-    xbt_free(routing->link_table);
-    /* Delete dictionary index and limit table */
-    if(routing->AS_to_index) {
-      AS_table_size = xbt_dict_length(routing->AS_to_index);
-      xbt_dict_free(&(routing->AS_to_index));
-    }
-    if(routing->AS_table) {
-      for(i=0;i<AS_table_size;i++) {
-        for(j=0;j<AS_table_size;j++) {
-          if(TO_FLOYD_AS(i,j).src_gateway) xbt_free(TO_FLOYD_AS(i,j).src_gateway);
-          if(TO_FLOYD_AS(i,j).dst_gateway) xbt_free(TO_FLOYD_AS(i,j).dst_gateway);
-        }
-      }
-    }
-    xbt_free(routing->AS_table);
-    /* Delete index dynar for last routes */
-    if(routing->last_route->src_gateway) xbt_free(routing->last_route->src_gateway);
-    if(routing->last_route->dst_gateway) xbt_free(routing->last_route->dst_gateway);
-    xbt_dynar_free(&(routing->last_route->generic_route.link_list));
-    xbt_free(routing->last_route);
     /* Delete structure */
     xbt_free(rc);
   }
 }
 
-/* Creation routing model functions */
-
-static void* model_floyd_create() {
+static void* model_floyd_create(void) {
   routing_component_floyd_t new_component = xbt_new0(s_routing_component_floyd_t,1);
-  /* global vars */
+  new_component->generic_routing.set_processing_units = generic_set_processing_units;
+  new_component->generic_routing.set_autonomous_system = generic_set_autonomous_system;
+  new_component->generic_routing.set_route = generic_set_route;
+  new_component->generic_routing.set_ASroute = generic_set_ASroute;
+  new_component->generic_routing.set_bypassroute = generic_set_bypassroute;
   new_component->generic_routing.get_route = floyd_get_route;
+  new_component->generic_routing.get_bypass_route = generic_get_bypassroute;
   new_component->generic_routing.finalize = floyd_finalize;
-  new_component->generic_routing.get_network_elements = floyd_get_network_elements;
-  /* local vars */
-  new_component->last_route = xbt_new(s_route_extended_t,1);
-  new_component->last_route->src_gateway = NULL;
-  new_component->last_route->dst_gateway = NULL;
-  new_component->last_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
-  new_component->predecessor_to_index = xbt_dict_new();
-  new_component->AS_to_index = NULL;
-  new_component->AS_table = NULL;
+  new_component->to_index = xbt_dict_new();
+  new_component->bypassRoutes = xbt_dict_new();
   new_component->parse_routes = xbt_dict_new();
   return new_component;
 }
 
-static void  model_floyd_load() {
-  surfxml_add_callback(STag_surfxml_host_cb_list, &floyd_parse_S_host);
-  surfxml_add_callback(STag_surfxml_gateway_cb_list, &floyd_parse_S_gateway);
-  surfxml_add_callback(STag_surfxml_router_cb_list, &floyd_parse_S_router);
-  surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &generic_E_link_c_ctn_new_elem);
-  surfxml_add_callback(STag_surfxml_route_cb_list, &generic_parse_S_route_new_and_endpoints);
-  surfxml_add_callback(ETag_surfxml_route_cb_list, &generic_parse_E_route_store_route);
+static void  model_floyd_load(void) {
+ /* use "surfxml_add_callback" to add a parse function call */
 }
 
-static void  model_floyd_unload() {
-  surfxml_del_callback(&STag_surfxml_host_cb_list, &floyd_parse_S_host);
-  surfxml_del_callback(&STag_surfxml_gateway_cb_list, &floyd_parse_S_gateway);
-  surfxml_del_callback(&STag_surfxml_router_cb_list, &floyd_parse_S_router);
-  surfxml_del_callback(&ETag_surfxml_link_c_ctn_cb_list, &generic_E_link_c_ctn_new_elem);
-  surfxml_del_callback(&STag_surfxml_route_cb_list, &generic_parse_S_route_new_and_endpoints);
-  surfxml_del_callback(&ETag_surfxml_route_cb_list, &generic_parse_E_route_store_route);
+static void  model_floyd_unload(void) {
+ /* use "surfxml_del_callback" to remove a parse function call */
 }
 
-static void  model_floyd_end() {
+static void  model_floyd_end(void) {
   
   routing_component_floyd_t routing = ((routing_component_floyd_t)current_routing);
-  const char *sep = "#";
-  char *key, *key_gw, *end, *link_name, *keyX, *keyY; 
-  char *src_name, *dst_name, *src_gw_name, *dst_gw_name;
+  xbt_dict_cursor_t cursor = NULL;
   double * cost_table;
-  unsigned int i,j;
-  unsigned int a,b,c;
-  int host_count=0, AS_count=0;
-  void *data = NULL;
-  void *link = NULL;
-  e_surf_network_element_type_t *type_gw;
-  network_element_t ne, ne_gw, new_ne, src_ne, dst_ne, src_gw_ne, dst_gw_ne, neX, neY;
-  xbt_dict_cursor_t cursor=NULL, cursor_gw=NULL, cursorX=NULL, cursorY=NULL;
-  xbt_dynar_t links, keys;
-  routing_component_t component;
-  
-  /* (0) Check for if there are any host in the a AS */
-  xbt_dict_foreach(routing->predecessor_to_index, cursor, key, ne) { 
-    if(ne->type == SURF_NETWORK_ELEMENT_HOST ) host_count++;
-  }
-  AS_count = xbt_dict_length(current_routing->routing_sons);
-  
-  xbt_assert2( (host_count>0 && AS_count==0) || (host_count==0 && AS_count>0),
-       "Invalid count of network elements, %d AS and %d host found",AS_count,host_count);
-
-  /* Add the AS gateways to network elements dictionary  */
-  xbt_dict_foreach(current_routing->routing_sons, cursor, key, component) {
-    xbt_assert1(component->get_network_elements,
-      "Invalid \"get_network_elements\" for \"%s\"",key);         
-    xbt_dict_t gateways = (*(component->get_network_elements))(component,SURF_NETWORK_ELEMENT_GATEWAY);
-    xbt_dict_foreach(gateways, cursor_gw, key_gw, type_gw) {
-      new_ne = xbt_new0(s_network_element_t,1);
-      new_ne->id = xbt_dict_length(routing->predecessor_to_index);
-      new_ne->type = SURF_NETWORK_ELEMENT_AS_GATEWAY;
-      xbt_dict_set(routing->predecessor_to_index,key_gw,new_ne,xbt_free);
-    }
-    xbt_dict_free(&gateways);
-  }
-
-  /* (1) first process: calculate the routing table using the floyd algorithm */
+  char *key,*data, *end; //*src_name, *dst_name;
+  const char *sep = "#";
+  xbt_dynar_t keys;
+  int src_id, dst_id;
+  unsigned int i,j,a,b,c;
 
   /* set the size of inicial table */
-   int table_size = xbt_dict_length(routing->predecessor_to_index);
-   
-   /* Create Cost, Predecessor and Link tables */
-   cost_table = xbt_new0(double, table_size*table_size);              // link cost from host to host
-   routing->predecessor_table = xbt_new0(int, table_size*table_size); // predecessor host numbers
-   routing->link_table = xbt_new0(void*,table_size*table_size);       // actual link between src and dst
-
-  /* Initialize costs and predecessors */
-  for(i=0;i<table_size;i++)
-    for(j=0;j<table_size;j++) {
+  int table_size = xbt_dict_length(routing->to_index);
+  
+  /* Create Cost, Predecessor and Link tables */
+  cost_table = xbt_new0(double, table_size*table_size); //link cost from host to host
+  routing->predecessor_table = xbt_new0(int, table_size*table_size); //predecessor host numbers
+  routing->link_table = xbt_new0(route_extended_t, table_size*table_size); //actual link between src and dst
+
+  /* Initialize costs and predecessors*/
+  for(i = 0; i<table_size;i++)
+    for(j = 0; j<table_size;j++) {
         TO_FLOYD_COST(i,j) = DBL_MAX;
         TO_FLOYD_PRED(i,j) = -1;
-        TO_FLOYD_LINK(i,j) = NULL; // TODO: FIXED DAVID
+        TO_FLOYD_LINK(i,j) = NULL; // FIXED by david
     }
 
    /* Put the routes in position */
   xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
-
-    links = (xbt_dynar_t)data;
     keys = xbt_str_split_str(key, sep);
-
-    src_name    = xbt_dynar_get_as(keys, 0, char*);
-    dst_name    = xbt_dynar_get_as(keys, 1, char*);
-    src_gw_name = xbt_dynar_get_as(keys, 2, char*);
-    dst_gw_name = xbt_dynar_get_as(keys, 3, char*);
-    
-    src_ne    = xbt_dict_get_or_null(routing->predecessor_to_index, src_name);
-    dst_ne    = xbt_dict_get_or_null(routing->predecessor_to_index, dst_name);
-    src_gw_ne = xbt_dict_get_or_null(routing->predecessor_to_index, src_gw_name);
-    dst_gw_ne = xbt_dict_get_or_null(routing->predecessor_to_index, dst_gw_name);
-    
-    xbt_assert2(src_ne != NULL || src_gw_ne != NULL,
-       "Invalid source, network elements\"%s\" with gateway \"%s\" not found", src_name, src_gw_name);
-    xbt_assert2(dst_ne != NULL || dst_gw_ne != NULL,
-       "Invalid source, network elements\"%s\" with gateway \"%s\" not found", dst_name, dst_gw_name);
-    //DEBUG4("Handle %d %d (from %d hosts): %ld links",src_id,dst_id,routing->generic_routing.host_count,xbt_dynar_length(links));
-    xbt_assert3(xbt_dynar_length(links) == 1, "%ld links in route between host \"%s\" and \"%s\", should be 1", xbt_dynar_length(links), src_name, dst_name);
-    
-    link_name = xbt_dynar_getfirst_as(links, char*);
-    link = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
-    
-    if( src_ne == NULL ) src_ne = src_gw_ne;
-    if( dst_ne == NULL ) dst_ne = dst_gw_ne;
-    
-    if (link)
-      link_list = link;
-    else
-      THROW1(mismatch_error,0,"Link %s not found", link_name);
-    
-    TO_FLOYD_LINK(src_ne->id,dst_ne->id) = link_list;
-    TO_FLOYD_PRED(src_ne->id,dst_ne->id) = src_ne->id;
-
+    src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 10);
+    dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 10);
+    TO_FLOYD_LINK(src_id,dst_id) = generic_new_extended_route(current_routing->hierarchy,data,0);
+    TO_FLOYD_PRED(src_id,dst_id) = src_id;
     //link cost
-    TO_FLOYD_COST(src_ne->id,dst_ne->id) = 1; // assume 1 for now
-    
+    TO_FLOYD_COST(src_id,dst_id) = ((TO_FLOYD_LINK(src_id,dst_id))->generic_route.link_list)->used; // assume 1 for now // TODO DAVID REDO
     xbt_dynar_free(&keys);
   }
 
   /* Add the loopback if needed */
-  for (i = 0; i < table_size; i++)
-    if (TO_FLOYD_PRED(i,i) == -1) { // TODO: FIXED DAVID
-      TO_FLOYD_PRED(i,i) = i;
-      TO_FLOYD_COST(i,i) = 1;
-      TO_FLOYD_LINK(i,i) = global_routing->loopback;
+  if(current_routing->hierarchy == SURF_ROUTING_BASE) {
+    for (i = 0; i < table_size; i++) {
+      route_extended_t e_route = TO_FLOYD_LINK(i, i);
+      if(!e_route) { // && !xbt_dynar_length(e_route->generic_route.link_list)
+        e_route = xbt_new0(s_route_extended_t,1);
+        e_route->src_gateway = NULL;
+        e_route->dst_gateway = NULL;
+        e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+        xbt_dynar_push(e_route->generic_route.link_list,&global_routing->loopback);
+        TO_FLOYD_LINK(i,i) = e_route;
+        TO_FLOYD_PRED(i,i) = i;
+        TO_FLOYD_COST(i,i) = 1;
+      }
     }
-
-  /* Calculate path costs */
+  }
+  //Calculate path costs 
   for(c=0;c<table_size;c++) {
     for(a=0;a<table_size;a++) {
       for(b=0;b<table_size;b++) {
@@ -1126,189 +1002,460 @@ static void  model_floyd_end() {
       }
     }
   }
+
+   /* delete the parse table */
+  xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
+    route_t route = (route_t)data;
+    xbt_dynar_free(&(route->link_list));
+    xbt_free(data);
+  }
   
-  /* (2) second process: if there are any AS, make a routing table for AS limits */
+  /* delete parse dict */
+  xbt_dict_free(&(routing->parse_routes));
+
+  //cleanup
+  xbt_free(cost_table);
+}
+
+/* ************************************************************************** */
+/* ********** Dijkstra & Dijkstra Cached ROUTING **************************** */
+
+typedef struct {
+  s_routing_component_t generic_routing;
+  xbt_dict_t to_index;
+  xbt_dict_t bypassRoutes;
+  xbt_graph_t route_graph;   /* xbt_graph */
+  xbt_dict_t graph_node_map; /* map */
+  xbt_dict_t route_cache;    /* use in cache mode */
+  int cached;
+  xbt_dict_t parse_routes;
+} s_routing_component_dijkstra_t,*routing_component_dijkstra_t;
+
 
-  if( xbt_dict_length(current_routing->routing_sons) > 0 ) {
+typedef struct graph_node_data {
+  int id; 
+  int graph_id; //used for caching internal graph id's
+} s_graph_node_data_t, * graph_node_data_t;
 
-    /* store index for the routing table */
-    routing->AS_to_index = xbt_dict_new();
+typedef struct graph_node_map_element {
+  xbt_node_t node;
+} s_graph_node_map_element_t, * graph_node_map_element_t;
 
-    /* Add all local AS into AS_to_index  */
-    xbt_dict_foreach(current_routing->routing_sons, cursor, key, component) {
-      ne = xbt_new0(s_network_element_t,1);
-      ne->id = xbt_dict_length(routing->AS_to_index);
-      ne->type = SURF_NETWORK_ELEMENT_AS;
-      xbt_dict_set(routing->AS_to_index,key,ne,xbt_free);
+typedef struct route_cache_element {
+  int * pred_arr;
+  int size;
+} s_route_cache_element_t, * route_cache_element_t;    
+
+/* Free functions */
+
+static void route_cache_elem_free(void *e) {
+  route_cache_element_t elm=(route_cache_element_t)e;
+  if (elm) {
+    xbt_free(elm->pred_arr);
+    xbt_free(elm);
+  }
+}
+
+static void graph_node_map_elem_free(void *e) {
+  graph_node_map_element_t elm = (graph_node_map_element_t)e;
+  if(elm) {
+    xbt_free(elm);
+  }
+}
+
+static void graph_edge_data_free(void *e) {
+  route_extended_t e_route = (route_extended_t)e;
+  if(e_route) {
+    xbt_dynar_free(&(e_route->generic_route.link_list));
+    if(e_route->src_gateway) xbt_free(e_route->src_gateway);
+    if(e_route->dst_gateway) xbt_free(e_route->dst_gateway);
+    xbt_free(e_route);
+  }
+}
+
+/* Utility functions */
+
+static xbt_node_t route_graph_new_node(routing_component_dijkstra_t rc, int id, int graph_id) {
+  routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
+  xbt_node_t node = NULL;
+  graph_node_data_t data = NULL;
+  graph_node_map_element_t elm = NULL;
+
+  data = xbt_new0(struct graph_node_data, 1); // FIXED by david
+  data->id = id;
+  data->graph_id = graph_id;
+  node = xbt_graph_new_node(routing->route_graph, data);
+
+  elm = xbt_new0(struct graph_node_map_element, 1); // FIXED by david
+  elm->node = node;
+  xbt_dict_set_ext(routing->graph_node_map, (char*)(&id), sizeof(int), (xbt_set_elm_t)elm, &graph_node_map_elem_free);
+
+  return node;
+}
+static graph_node_map_element_t graph_node_map_search(routing_component_dijkstra_t rc, int id) {
+  routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
+  graph_node_map_element_t elm = (graph_node_map_element_t)xbt_dict_get_or_null_ext(routing->graph_node_map, (char*)(&id), sizeof(int));
+  return elm;
+}
+
+/* Parsing */
+
+static void route_new_dijkstra(routing_component_dijkstra_t rc, int src_id, int dst_id, route_extended_t e_route       ) {
+  routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
+
+  xbt_node_t src = NULL;
+  xbt_node_t dst = NULL;
+  graph_node_map_element_t src_elm = (graph_node_map_element_t)xbt_dict_get_or_null_ext(routing->graph_node_map, (char*)(&src_id), sizeof(int));
+  graph_node_map_element_t dst_elm = (graph_node_map_element_t)xbt_dict_get_or_null_ext(routing->graph_node_map, (char*)(&dst_id), sizeof(int));
+
+  if(src_elm)
+    src = src_elm->node;
+
+  if(dst_elm)
+    dst = dst_elm->node;
+
+  //add nodes if they don't exist in the graph
+  if(src_id == dst_id && src == NULL && dst == NULL) {
+    src = route_graph_new_node(rc,src_id, -1);
+    dst = src;
+  } else {
+    if(src == NULL) {
+      src = route_graph_new_node(rc,src_id, -1);
     }
-    
-    /* Add all local gateways into AS_to_index */
-    xbt_dict_foreach(routing->predecessor_to_index, cursor, key, ne) { 
-      if( ne->type == SURF_NETWORK_ELEMENT_GATEWAY ) {
-        new_ne = xbt_new0(s_network_element_t,1);
-        new_ne->id = xbt_dict_length(routing->AS_to_index);
-        new_ne->type = SURF_NETWORK_ELEMENT_GATEWAY;
-        xbt_dict_set(routing->AS_to_index,key,new_ne,xbt_free);
-      }
+    if(dst == NULL) {
+      dst = route_graph_new_node(rc,dst_id, -1);
     }
+  }
 
-    /* size of the limits table for AS */
-    int AS_table_size = xbt_dict_length(routing->AS_to_index);
-  
-    /* Create the limits table for AS */
-    routing->AS_table = xbt_new0(s_route_limits_t, AS_table_size * AS_table_size);
-    for (i=0;i<AS_table_size;i++) {
-      for (j=0;j<AS_table_size;j++) {
-        TO_FLOYD_AS(i,j).src_gateway = NULL;
-        TO_FLOYD_AS(i,j).dst_gateway = NULL;
+  //add link as edge to graph
+  xbt_graph_new_edge(routing->route_graph, src, dst, e_route);
+}
+
+static void add_loopback_dijkstra(routing_component_dijkstra_t rc) {
+  routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
+
+  xbt_dynar_t nodes = xbt_graph_get_nodes(routing->route_graph);
+
+  xbt_node_t node = NULL;
+  unsigned int cursor2;
+  xbt_dynar_foreach(nodes, cursor2, node) {
+    xbt_dynar_t out_edges = xbt_graph_node_get_outedges(node); 
+    xbt_edge_t edge = NULL;
+    unsigned int cursor;
+
+    int found = 0;
+    xbt_dynar_foreach(out_edges, cursor, edge) {
+      xbt_node_t other_node = xbt_graph_edge_get_target(edge);
+      if(other_node == node) {
+        found = 1;
+        break;
       }
     }
 
-    /* (3) third process: find the best gateways for each AS */
+    if(!found) {
+      route_extended_t e_route = xbt_new0(s_route_extended_t,1);
+      e_route->src_gateway = NULL;
+      e_route->dst_gateway = NULL;
+      e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+      xbt_dynar_push(e_route->generic_route.link_list,&global_routing->loopback);
+      xbt_graph_new_edge(routing->route_graph, node, node, e_route);
+    }
+  }
+}
 
-    // select two AS or gateways
-    xbt_dict_foreach(routing->AS_to_index, cursorX, keyX, neX) {
-      xbt_dict_foreach(routing->AS_to_index, cursorY, keyY, neY) {
+/* Business methods */
 
-        if( neX != neY ) { // if the network elements are differents
+static route_extended_t dijkstra_get_route(routing_component_t rc, const char* src,const char* dst) {
+  xbt_assert1(rc&&src&&dst, "Invalid params for \"get_route\" function at AS \"%s\"",rc->name);
+  
+  /* set utils vars */
+  routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
+  
+  generic_src_dst_check(rc,src,dst);
+  int *src_id = xbt_dict_get_or_null(routing->to_index,src);
+  int *dst_id = xbt_dict_get_or_null(routing->to_index,dst);
+  xbt_assert2(src_id && dst_id, "Ask for route \"from\"(%s)  or \"to\"(%s) no found in the local table",src,dst); 
+  
+  /* create a result route */
+  route_extended_t new_e_route = xbt_new0(s_route_extended_t,1);
+  new_e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+  new_e_route->src_gateway = NULL;
+  new_e_route->dst_gateway = NULL;
+  
+  int *pred_arr = NULL;
+  int src_node_id = 0;
+  int dst_node_id = 0;
+  int * nodeid = NULL;
+  int v;
+  route_extended_t e_route;
+  int size = 0;
+  unsigned int cpt;
+  void* link;
+  xbt_dynar_t links = NULL;
+  route_cache_element_t elm = NULL;
+  xbt_dynar_t nodes = xbt_graph_get_nodes(routing->route_graph);
+  
+  /* Use the graph_node id mapping set to quickly find the nodes */
+  graph_node_map_element_t src_elm = graph_node_map_search(routing,*src_id);
+  graph_node_map_element_t dst_elm = graph_node_map_search(routing,*dst_id);
+  xbt_assert2(src_elm != NULL && dst_elm != NULL, "src %d or dst %d does not exist", *src_id, *dst_id);
+  src_node_id = ((graph_node_data_t)xbt_graph_node_get_data(src_elm->node))->graph_id;
+  dst_node_id = ((graph_node_data_t)xbt_graph_node_get_data(dst_elm->node))->graph_id;
+
+  /* if the src and dst are the same */ // FIXED by david
+  if( src_node_id == dst_node_id ) {
+    
+    xbt_node_t node_s_v = xbt_dynar_get_as(nodes, src_node_id, xbt_node_t);
+    xbt_node_t node_e_v = xbt_dynar_get_as(nodes, dst_node_id, xbt_node_t);
+    xbt_edge_t edge = xbt_graph_get_edge(routing->route_graph, node_s_v, node_e_v);
 
-            if( ( neX->type==SURF_NETWORK_ELEMENT_HOST || neX->type==SURF_NETWORK_ELEMENT_GATEWAY ) &&
-                ( neY->type==SURF_NETWORK_ELEMENT_HOST || neY->type==SURF_NETWORK_ELEMENT_GATEWAY ) ) {
-            /* route between hosts or gateways : do not any thing */
-            } else if( (neX->type==SURF_NETWORK_ELEMENT_AS && neY->type==SURF_NETWORK_ELEMENT_AS) ||
-                       (neX->type==SURF_NETWORK_ELEMENT_AS && neY->type==SURF_NETWORK_ELEMENT_GATEWAY) ||
-                       (neX->type==SURF_NETWORK_ELEMENT_GATEWAY && neY->type==SURF_NETWORK_ELEMENT_AS) ) {
-            /* route between AS */
-            /* or route between AS and gateway */
-            /* or route between gateway adn AS */
-        
-            routing_component_t rcX, rcY;
-            xbt_dict_t list_ASgatewayX, list_ASgatewayY;
-
-            if( neX->type==SURF_NETWORK_ELEMENT_AS ) {
-              rcX = xbt_dict_get_or_null(current_routing->routing_sons,keyX);
-              xbt_assert1(rcX && rcX->get_network_elements,
-                  "Invalid \"get_network_elements\" for \"%s\"",keyX);     
-              list_ASgatewayX = (*(rcX->get_network_elements))(rcX,SURF_NETWORK_ELEMENT_GATEWAY);
-            } else {
-              list_ASgatewayX = xbt_dict_new();
-              e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
-             *new_type = SURF_NETWORK_ELEMENT_GATEWAY;
-              xbt_dict_set(list_ASgatewayX,keyX,new_type,xbt_free); 
-            }
-            
-            if( neY->type==SURF_NETWORK_ELEMENT_AS ) {
-              rcY = xbt_dict_get_or_null(current_routing->routing_sons,keyY);
-              xbt_assert1(rcY && rcY->get_network_elements,
-                  "Invalid \"get_network_elements\" for \"%s\"",keyY);
-              list_ASgatewayY = (*(rcY->get_network_elements))(rcY,SURF_NETWORK_ELEMENT_GATEWAY);
-            } else {
-              list_ASgatewayY = xbt_dict_new();
-              e_surf_network_element_type_t *new_type = xbt_new0(e_surf_network_element_type_t,1);
-             *new_type = SURF_NETWORK_ELEMENT_GATEWAY;
-              xbt_dict_set(list_ASgatewayY,keyY,new_type,xbt_free); 
-            }
-
-            xbt_dict_cursor_t cursorASgatewayX=NULL, cursorASgatewayY=NULL;
-            char * keyASgatewayX, *keyASgatewayY;
-            e_surf_network_element_type_t *typeASgatewayX, *typeASgatewayY;
-
-            char* best_ASgatewayX = NULL;
-            char* best_ASgatewayY = NULL;
-            double best_cost = DBL_MAX;
-
-            // test for all combinations fo Gateways between the AS
-            xbt_dict_foreach(list_ASgatewayX, cursorASgatewayX, keyASgatewayX, typeASgatewayX) {
-              xbt_dict_foreach(list_ASgatewayY, cursorASgatewayY, keyASgatewayY, typeASgatewayY) {
-                //printf(".....%s....%s....\n",keyASgatewayX,keyASgatewayY);
-                network_element_t src_ne = xbt_dict_get_or_null(routing->predecessor_to_index, keyASgatewayX);
-                network_element_t dst_ne = xbt_dict_get_or_null(routing->predecessor_to_index, keyASgatewayY);
-                double new_cost = TO_FLOYD_COST(src_ne->id,dst_ne->id);
-                if( best_cost > new_cost ) {
-                  if(best_ASgatewayX) xbt_free(best_ASgatewayX);
-                  if(best_ASgatewayY) xbt_free(best_ASgatewayY);
-                  best_cost = new_cost;
-                  best_ASgatewayX = xbt_strdup(keyASgatewayX);
-                  best_ASgatewayY = xbt_strdup(keyASgatewayY);
-                }
-              }
-            }
-            // store the best combination of gateways into the table
-            xbt_assert2(best_ASgatewayX && best_ASgatewayY,
-                  "Can not found a combination of gateways for a route between \"%s\" and \"%s\"",keyX,keyY);
-            network_element_t src_ne = xbt_dict_get_or_null(routing->AS_to_index, keyX);
-            network_element_t dst_ne = xbt_dict_get_or_null(routing->AS_to_index, keyY);
-            xbt_assert0(src_ne && dst_ne, "Invalid gateways for a make a route");
-            TO_FLOYD_AS(src_ne->id,dst_ne->id).src_gateway = best_ASgatewayX;
-            TO_FLOYD_AS(src_ne->id,dst_ne->id).dst_gateway = best_ASgatewayY;
-
-            /* free the list of gateways */
-            xbt_dict_free(&list_ASgatewayX);
-            xbt_dict_free(&list_ASgatewayY);
-
-            } else {
-              xbt_assert0(0, "Invalid network element type");
-            }
-        } // close big if
-      } // close Y foreach
-    } // close X foreach
+    xbt_assert2(edge != NULL, "no route between host %d and %d", *src_id, *dst_id);
     
-  } // close if for second process
+    e_route = (route_extended_t)xbt_graph_edge_get_data(edge);
 
-   /* delete the parse table */
-  xbt_dict_foreach(routing->parse_routes, cursor, key, links) {
-    xbt_dynar_free(&links);
-  }
+    links = e_route->generic_route.link_list;
+    xbt_dynar_foreach(links, cpt, link) {
+      xbt_dynar_unshift(new_e_route->generic_route.link_list,&link);
+    }
   
-  /* delete all the parsing temporary data */
-  xbt_dict_free(&(routing->parse_routes));
+    return new_e_route;
+  }
   
-  /* cleanup */
-   free(cost_table);
-}
+  if(routing->cached) {
+    /*check if there is a cached predecessor list avail */
+    elm = (route_cache_element_t)xbt_dict_get_or_null_ext(routing->route_cache, (char*)(&src_id), sizeof(int));
+  }
 
-/* ************************************************************************** */
-/* ********** Dijkstra & Dijkstra Cached ROUTING **************************** */
+  if(elm) { //cached mode and cache hit
+    pred_arr = elm->pred_arr;
+  } else { //not cached mode or cache miss
+    double * cost_arr = NULL;
+    xbt_heap_t pqueue = NULL;
+    int i = 0;
 
-typedef struct {
-  s_routing_component_t generic_routing;
-  xbt_graph_t route_graph;
-  xbt_dict_t graph_node_map;
-  xbt_dict_t route_cache;
-  xbt_dynar_t last_route;
-  int cached;
-} s_routing_component_dijkstra_t,*routing_component_dijkstra_t;
+    int nr_nodes = xbt_dynar_length(nodes);
+    cost_arr = xbt_new0(double, nr_nodes); // link cost from src to other hosts
+    pred_arr = xbt_new0(int, nr_nodes);    // predecessors in path from src
+    pqueue = xbt_heap_new(nr_nodes, xbt_free);
 
-/* Parse routing model functions */
+    //initialize
+    cost_arr[src_node_id] = 0.0;
 
-/* Business methods */
+    for(i = 0; i < nr_nodes; i++) {
+      if(i != src_node_id) {
+        cost_arr[i] = DBL_MAX;
+      }
 
-/* Creation routing model functions */
+      pred_arr[i] = 0;
 
-static void* model_dijkstra_create() {
-}
+      //initialize priority queue
+      nodeid = xbt_new0(int, 1);
+      *nodeid = i;
+      xbt_heap_push(pqueue, nodeid, cost_arr[i]);
+
+    }
+
+    // apply dijkstra using the indexes from the graph's node array
+    while(xbt_heap_size(pqueue) > 0) {
+      int * v_id = xbt_heap_pop(pqueue);
+      xbt_node_t v_node = xbt_dynar_get_as(nodes, *v_id, xbt_node_t);
+      xbt_dynar_t out_edges = xbt_graph_node_get_outedges(v_node); 
+      xbt_edge_t edge = NULL;
+      unsigned int cursor;
+
+      xbt_dynar_foreach(out_edges, cursor, edge) {
+        xbt_node_t u_node = xbt_graph_edge_get_target(edge);
+        graph_node_data_t data = xbt_graph_node_get_data(u_node);
+        int u_id = data->graph_id;
+       route_extended_t tmp_e_route = (route_extended_t)xbt_graph_edge_get_data(edge); // added TODO DAVID REDO
+        int cost_v_u = (tmp_e_route->generic_route.link_list)->used; //fixed link cost for now // TODO DAVID REDO
+
+        if(cost_v_u + cost_arr[*v_id] < cost_arr[u_id]) {
+          pred_arr[u_id] = *v_id;
+          cost_arr[u_id] = cost_v_u + cost_arr[*v_id];
+          nodeid = xbt_new0(int, 1);
+          *nodeid = u_id;
+          xbt_heap_push(pqueue, nodeid, cost_arr[u_id]);
+        }
+      }
+
+      //free item popped from pqueue
+      xbt_free(v_id);
+    }
 
-static void  model_dijkstra_load() {
+    xbt_free(cost_arr);
+    xbt_heap_free(pqueue);
+  }
+  
+  //compose route path with links
+  char *gw_src,*gw_dst, *prev_gw_src,*prev_gw_dst, *first_gw;
+  
+  for(v = dst_node_id; v != src_node_id; v = pred_arr[v]) {
+    xbt_node_t node_pred_v = xbt_dynar_get_as(nodes, pred_arr[v], xbt_node_t);
+    xbt_node_t node_v = xbt_dynar_get_as(nodes, v, xbt_node_t);
+    xbt_edge_t edge = xbt_graph_get_edge(routing->route_graph, node_pred_v, node_v);
+
+    xbt_assert2(edge != NULL, "no route between host %d and %d", *src_id, *dst_id);
+    
+    prev_gw_src = gw_src;
+    prev_gw_dst = gw_dst;
+    
+    e_route = (route_extended_t)xbt_graph_edge_get_data(edge);
+    gw_src = e_route->src_gateway;
+    gw_dst = e_route->dst_gateway;
+    
+    if(v==dst_node_id) first_gw = gw_dst;
+    
+    if(rc->hierarchy == SURF_ROUTING_RECURSIVE && v!=dst_node_id && strcmp(gw_dst,prev_gw_src)) {
+      //routing_component_t src_as = xbt_dict_get_or_null(global_routing->where_network_elements,gw_dst);
+      //routing_component_t dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,prev_gw_src);
+      //xbt_assert4(src_as==dst_as,"bad routing, differents AS gateways in route \"%s\" to \"%s\" (\"%s\"-\"%s\")",src,dst,gw_dst,prev_gw_src);
+      //route_extended_t e_route_as_to_as = (*(src_as->get_route))(src_as,gw_dst,prev_gw_src);
+      // TODO: - check for error - is possible to generate a route like =  as----as----as
+      xbt_dynar_t e_route_as_to_as = (*(global_routing->get_route))(gw_dst,prev_gw_src);
+      xbt_assert2(e_route_as_to_as,"no route between \"%s\" and \"%s\"",gw_dst,prev_gw_src);
+      //links = e_route_as_to_as->generic_route.link_list;
+      links = e_route_as_to_as;
+      int pos = 0;
+      xbt_dynar_foreach(links, cpt, link) {
+        xbt_dynar_insert_at(new_e_route->generic_route.link_list,pos,&link);
+        pos++;
+      }
+//       xbt_dynar_free(&(e_route_as_to_as->generic_route.link_list));
+//       xbt_free(e_route_as_to_as);
+    }
+    
+    links = e_route->generic_route.link_list;
+    xbt_dynar_foreach(links, cpt, link) {
+      xbt_dynar_unshift(new_e_route->generic_route.link_list,&link);
+    }
+    size++;
+  }
+
+  if(rc->hierarchy == SURF_ROUTING_RECURSIVE) {
+    new_e_route->src_gateway = gw_src;
+    new_e_route->dst_gateway = first_gw;
+  }
+
+  if(routing->cached && elm == NULL) {
+    //add to predecessor list of the current src-host to cache
+    elm = xbt_new0(struct route_cache_element, 1); // FIXED by david
+    elm->pred_arr = pred_arr;
+    elm->size = size;
+    xbt_dict_set_ext(routing->route_cache, (char*)(&src_id), sizeof(int), (xbt_set_elm_t)elm, &route_cache_elem_free);
+  }
+
+  if(!routing->cached)
+    xbt_free(pred_arr);
+  
+  return new_e_route;
 }
 
-static void  model_dijkstra_unload() {
+static void dijkstra_finalize(routing_component_t rc) {
+  routing_component_dijkstra_t routing = (routing_component_dijkstra_t) rc;
+
+  if (routing) {
+    xbt_graph_free_graph(routing->route_graph, &xbt_free, &graph_edge_data_free, &xbt_free);
+    xbt_dict_free(&routing->graph_node_map);
+    if(routing->cached)
+      xbt_dict_free(&routing->route_cache);
+    /* Delete bypass dict */
+    xbt_dict_free(&routing->bypassRoutes);
+    /* Delete index dict */
+    xbt_dict_free(&(routing->to_index));
+    /* Delete structure */
+    xbt_free(routing);
+  }
 }
 
-static void  model_dijkstra_end() {
+/* Creation routing model functions */
+
+static void* model_dijkstra_both_create(int cached) {
+  routing_component_dijkstra_t new_component = xbt_new0(s_routing_component_dijkstra_t,1);
+  new_component->generic_routing.set_processing_units = generic_set_processing_units;
+  new_component->generic_routing.set_autonomous_system = generic_set_autonomous_system;
+  new_component->generic_routing.set_route = generic_set_route;
+  new_component->generic_routing.set_ASroute = generic_set_ASroute;
+  new_component->generic_routing.set_bypassroute = generic_set_bypassroute;
+  new_component->generic_routing.get_route = dijkstra_get_route;
+  new_component->generic_routing.get_bypass_route = generic_get_bypassroute;
+  new_component->generic_routing.finalize = dijkstra_finalize;
+  new_component->cached = cached;
+  new_component->to_index = xbt_dict_new();
+  new_component->bypassRoutes = xbt_dict_new();
+  new_component->parse_routes = xbt_dict_new();
+  return new_component;
 }
 
-static void* model_dijkstracache_create() {
+static void* model_dijkstra_create(void) {
+  return model_dijkstra_both_create(0);
 }
 
-static void  model_dijkstracache_load() {
+static void* model_dijkstracache_create(void) {
+  return model_dijkstra_both_create(1);
 }
 
-static void  model_dijkstracache_unload() {
+static void  model_dijkstra_both_load(void) {
+ /* use "surfxml_add_callback" to add a parse function call */
 }
 
-static void  model_dijkstracache_end() {
+static void  model_dijkstra_both_unload(void) {
+ /* use "surfxml_del_callback" to remove a parse function call */
 }
 
+static void  model_dijkstra_both_end(void) {
+  routing_component_dijkstra_t routing = (routing_component_dijkstra_t) current_routing;
+   xbt_dict_cursor_t cursor = NULL;
+   char *key, *data, *end;
+   const char *sep = "#";
+   xbt_dynar_t keys;
+  xbt_node_t node = NULL;
+  unsigned int cursor2;
+  xbt_dynar_t nodes = NULL;
+  int src_id, dst_id;
+  route_t route;
+  
+  /* Create the topology graph */
+  routing->route_graph = xbt_graph_new_graph(1, NULL);
+  routing->graph_node_map = xbt_dict_new();
+  
+  if(routing->cached)
+    routing->route_cache = xbt_dict_new();
+
+  /* Put the routes in position */
+  xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
+    keys = xbt_str_split_str(key, sep);
+    src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 10);
+    dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 10);
+    route_extended_t e_route = generic_new_extended_route(current_routing->hierarchy,data,0);
+    route_new_dijkstra(routing,src_id,dst_id,e_route);
+    xbt_dynar_free(&keys);
+  }
+
+  /* delete the parse table */
+  xbt_dict_foreach(routing->parse_routes, cursor, key, data) {
+    route = (route_t)data;
+    xbt_dynar_free(&(route->link_list));
+    xbt_free(data);
+  }
+      
+  /* delete parse dict */
+  xbt_dict_free(&(routing->parse_routes));
+  
+  /* Add the loopback if needed */
+  if(current_routing->hierarchy == SURF_ROUTING_BASE)
+    add_loopback_dijkstra(routing);
+
+  /* initialize graph indexes in nodes after graph has been built */
+  nodes = xbt_graph_get_nodes(routing->route_graph);
+
+  xbt_dynar_foreach(nodes, cursor2, node) {
+    graph_node_data_t data = xbt_graph_node_get_data(node);
+    data->graph_id = cursor2;
+  }
+  
+}
 
 /* ************************************************************************** */
 /* ******************************* NO ROUTING ******************************* */
@@ -1322,21 +1469,33 @@ typedef struct {
 static route_extended_t none_get_route(routing_component_t rc, const char* src,const char* dst){
   return NULL;
 }
+static route_extended_t none_get_bypass_route(routing_component_t rc, const char* src,const char* dst){
+  return NULL;
+}
 static void none_finalize(routing_component_t rc) {
   xbt_free(rc);
 }
 
+static void none_set_processing_units(routing_component_t rc, const char* name) {}
+static void none_set_autonomous_system(routing_component_t rc, const char* name) {}
+
 /* Creation routing model functions */
-static void* model_none_create() {
+static void* model_none_create(void) {
   routing_component_none_t new_component =  xbt_new0(s_routing_component_none_t,1);
+  new_component->generic_routing.set_processing_units = none_set_processing_units;
+  new_component->generic_routing.set_autonomous_system = none_set_autonomous_system;
+  new_component->generic_routing.set_route = NULL;
+  new_component->generic_routing.set_ASroute = NULL;
+  new_component->generic_routing.set_bypassroute = NULL;
   new_component->generic_routing.get_route = none_get_route;
+  new_component->generic_routing.get_bypass_route = none_get_bypass_route;
   new_component->generic_routing.finalize = none_finalize;
   return new_component;
 }
 
-static void  model_none_load() {}
-static void  model_none_unload() {}
-static void  model_none_end() {}
+static void  model_none_load(void) {}
+static void  model_none_unload(void) {}
+static void  model_none_end(void) {}
 
 /* ************************************************** */
 /* ********** PATERN FOR NEW ROUTING **************** */
@@ -1344,66 +1503,423 @@ static void  model_none_end() {}
 /* The minimal configuration of a new routing model need the next functions,
  * also you need to set at the start of the file, the new model in the model
  * list. Remember keep the null ending of the list.
-
-/* Routing model structure */
+ */
+/*** Routing model structure ***/
 typedef struct {
   s_routing_component_t generic_routing;
   /* things that your routing model need */
 } s_routing_component_NEW_t,*routing_component_NEW_t;
 
-/* Parse routing model functions */
-static void NEW_parse_S_host(void) {} /* example*/
+/*** Parse routing model functions ***/
+static void model_NEW_set_processing_units(routing_component_t rc, const char* name) {}
+static void model_NEW_set_autonomous_system(routing_component_t rc, const char* name) {}
+static void model_NEW_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {}
+static void model_NEW_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t route) {}
+static void model_NEW_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {}
 
-/* Business methods */
-static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {} /* mandatory */
-static void NEW_finalize(routing_component_t rc) {} /* mandatory */
+/*** Business methods ***/
+static route_extended_t NEW_get_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
+static route_extended_t NEW_get_bypass_route(routing_component_t rc, const char* src,const char* dst) {return NULL;}
+static void NEW_finalize(routing_component_t rc) {}
 
-/* Creation routing model functions */
-static void* model_NEW_create() {} /* mandatory */
-static void  model_NEW_load() {}   /* mandatory */
-static void  model_NEW_unload() {} /* mandatory */
-static void  model_NEW_end() {}    /* mandatory */
+// /*** Creation routing model functions ***/
+static void* model_NEW_create(void) {
+  routing_component_full_t new_component =  xbt_new0(s_routing_component_full_t,1);
+  new_component->generic_routing.set_processing_units = model_NEW_set_processing_units;
+  new_component->generic_routing.set_autonomous_system = model_NEW_set_autonomous_system;
+  new_component->generic_routing.set_route = model_NEW_set_route;
+  new_component->generic_routing.set_ASroute = model_NEW_set_ASroute;
+  new_component->generic_routing.set_bypassroute = model_NEW_set_bypassroute;
+  new_component->generic_routing.get_route = NEW_get_route;
+  new_component->generic_routing.get_bypass_route = NEW_get_bypass_route;
+  new_component->generic_routing.finalize = NEW_finalize;
+  /* initialization of internal structures */
+  return new_component;
+} /* mandatory */
+static void  model_NEW_load(void) {}   /* mandatory */
+static void  model_NEW_unload(void) {} /* mandatory */
+static void  model_NEW_end(void) {}    /* mandatory */
 
 /* ************************************************************************** */
 /* ************************* GENERIC PARSE FUNCTIONS ************************ */ 
 
-static void generic_parse_S_route_new_and_endpoints(void) {
-  if( src != NULL && dst != NULL && link_list != NULL )
-    THROW2(arg_error,0,"Route between %s to %s can not be defined",A_surfxml_route_src,A_surfxml_route_dst);
-  src = A_surfxml_route_src;
-  dst = A_surfxml_route_dst;
-  gw_src = A_surfxml_route_gw_src;
-  gw_dst = A_surfxml_route_gw_dst;
-  link_list = xbt_dynar_new(sizeof(char*), &xbt_free_ref);
+static void generic_set_processing_units(routing_component_t rc, const char* name) {
+  DEBUG1("Load process unit \"%s\"",name);
+  model_type_t modeltype = rc->routing;
+  int *id = xbt_new0(int,1); // xbt_malloc(sizeof(int)); ?
+  xbt_dict_t _to_index;
+  if(modeltype==&routing_models[SURF_MODEL_FULL])
+    _to_index = ((routing_component_full_t)rc)->to_index;
+  
+  else if(modeltype==&routing_models[SURF_MODEL_FLOYD])
+    _to_index = ((routing_component_floyd_t)rc)->to_index;
+  
+  else if(modeltype==&routing_models[SURF_MODEL_DIJKSTRA]||
+          modeltype==&routing_models[SURF_MODEL_DIJKSTRACACHE])
+    _to_index = ((routing_component_dijkstra_t)rc)->to_index;
+  
+  else xbt_die("\"generic_set_processing_units\" not support");
+  *id = xbt_dict_length(_to_index);
+  xbt_dict_set(_to_index,name,id,xbt_free);
 }
 
-static void generic_E_link_c_ctn_new_elem(void) {
-  char *val;
-  val = xbt_strdup(A_surfxml_link_c_ctn_id);
-  xbt_dynar_push(link_list, &val);
+static void generic_set_autonomous_system(routing_component_t rc, const char* name) {
+  DEBUG1("Load Autonomous system \"%s\"",name);
+  model_type_t modeltype = rc->routing;
+  int *id = xbt_new0(int,1); // xbt_malloc(sizeof(int)); ?
+  xbt_dict_t _to_index;
+  if(modeltype==&routing_models[SURF_MODEL_FULL])
+    _to_index = ((routing_component_full_t)rc)->to_index;
+  
+  else if(modeltype==&routing_models[SURF_MODEL_FLOYD])
+    _to_index = ((routing_component_floyd_t)rc)->to_index;
+  
+  else if(modeltype==&routing_models[SURF_MODEL_DIJKSTRA]||
+          modeltype==&routing_models[SURF_MODEL_DIJKSTRACACHE])
+    _to_index = ((routing_component_dijkstra_t)rc)->to_index;
+  
+  else xbt_die("\"generic_set_autonomous_system\" not support");
+  *id = xbt_dict_length(_to_index);
+  xbt_dict_set(_to_index,name,id,xbt_free);
 }
 
-static void generic_parse_E_route_store_route(void) {
+static void generic_set_route(routing_component_t rc, const char* src, const char* dst, route_t route) {
+  DEBUG2("Load Route from \"%s\" to \"%s\"",src,dst);
+  model_type_t modeltype = rc->routing;
+  xbt_dict_t _parse_routes;
+  xbt_dict_t _to_index;
   char *route_name;
-  xbt_dict_t parse_routes;
-  if( current_routing->routing == &(routing_models[SURF_MODEL_FULL]) )
-      parse_routes = ((routing_component_full_t)current_routing)->parse_routes;
-  else if( current_routing->routing == &(routing_models[SURF_MODEL_FLOYD]) )
-      parse_routes = ((routing_component_floyd_t)current_routing)->parse_routes; 
-  else
-      xbt_assert0(0, "Invalid model for call \"generic_parse_E_route_store_route\"");
-  route_name = bprintf("%s#%s#%s#%s",src,dst,gw_src,gw_dst);
-  xbt_assert2(xbt_dynar_length(link_list)>0, "Invalid count of links, must be greater than zero (%s,%s)",src,dst);   
-  xbt_assert3(!xbt_dict_get_or_null(parse_routes,route_name),
-    "The route between \"%s\" and \"%s\" already exist (\"%s\")",src,dst,route_name);
-  xbt_dict_set(parse_routes, route_name, link_list, NULL);
-  free(route_name);
-  src = NULL;
-  dst = NULL;
-  link_list = NULL;
+  int *src_id, *dst_id;
+  
+  if(modeltype==&routing_models[SURF_MODEL_FULL]) {
+    _parse_routes = ((routing_component_full_t)rc)->parse_routes;
+    _to_index = ((routing_component_full_t)rc)->to_index;
+    
+  } else if(modeltype==&routing_models[SURF_MODEL_FLOYD]) {
+    _parse_routes = ((routing_component_floyd_t)rc)->parse_routes;
+    _to_index = ((routing_component_floyd_t)rc)->to_index;
+    
+  } else if(modeltype==&routing_models[SURF_MODEL_DIJKSTRA]||
+          modeltype==&routing_models[SURF_MODEL_DIJKSTRACACHE]) {
+    _parse_routes = ((routing_component_dijkstra_t)rc)->parse_routes;
+    _to_index = ((routing_component_dijkstra_t)rc)->to_index;
+  
+  } else xbt_die("\"generic_set_route\" not support");
+
+  src_id = xbt_dict_get_or_null(_to_index, src);
+  dst_id = xbt_dict_get_or_null(_to_index, dst);
+  
+  xbt_assert2(src_id&&dst_id,"Network elements %s or %s not found", src, dst);
+  route_name = bprintf("%d#%d",*src_id,*dst_id);
+  
+  xbt_assert2(xbt_dynar_length(route->link_list)>0, "Invalid count of links, must be greater than zero (%s,%s)",src,dst);   
+  xbt_assert2(!xbt_dict_get_or_null(_parse_routes,route_name),
+    "The route between \"%s\" and \"%s\" already exist",src,dst);
+
+  xbt_dict_set(_parse_routes, route_name, route, NULL);
+  xbt_free(route_name);
 }
 
+static void generic_set_ASroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {
+  DEBUG4("Load ASroute from \"%s(%s)\" to \"%s(%s)\"",src,e_route->src_gateway,dst,e_route->dst_gateway);
+  model_type_t modeltype = rc->routing;
+  xbt_dict_t _parse_routes;
+  xbt_dict_t _to_index;
+  char *route_name;
+  int *src_id, *dst_id;
+  
+  if(modeltype==&routing_models[SURF_MODEL_FULL]) {
+    _parse_routes = ((routing_component_full_t)rc)->parse_routes;
+    _to_index = ((routing_component_full_t)rc)->to_index;
+    
+  } else if(modeltype==&routing_models[SURF_MODEL_FLOYD]) {
+    _parse_routes = ((routing_component_floyd_t)rc)->parse_routes;
+    _to_index = ((routing_component_floyd_t)rc)->to_index;
+    
+  } else if(modeltype==&routing_models[SURF_MODEL_DIJKSTRA]||
+          modeltype==&routing_models[SURF_MODEL_DIJKSTRACACHE]) {
+    _parse_routes = ((routing_component_dijkstra_t)rc)->parse_routes;
+    _to_index = ((routing_component_dijkstra_t)rc)->to_index;
+  
+  } else xbt_die("\"generic_set_route\" not support");
+  
+  src_id = xbt_dict_get_or_null(_to_index, src);
+  dst_id = xbt_dict_get_or_null(_to_index, dst);
+  
+  xbt_assert2(src_id&&dst_id,"Network elements %s or %s not found", src, dst);
+  route_name = bprintf("%d#%d",*src_id,*dst_id);
+  
+  xbt_assert2(xbt_dynar_length(e_route->generic_route.link_list)>0, "Invalid count of links, must be greater than zero (%s,%s)",src,dst);   
+  xbt_assert4(!xbt_dict_get_or_null(_parse_routes,route_name),
+    "The route between \"%s\"(\"%s\") and \"%s\"(\"%s\") already exist",src,e_route->src_gateway,dst,e_route->dst_gateway);
+    
+  xbt_dict_set(_parse_routes, route_name, e_route, NULL);
+  xbt_free(route_name);
+}
 
+static void generic_set_bypassroute(routing_component_t rc, const char* src, const char* dst, route_extended_t e_route) {
+  DEBUG2("Load bypassRoute from \"%s\" to \"%s\"",src,dst);
+  model_type_t modeltype = rc->routing;
+  xbt_dict_t dict_bypassRoutes;
+  char *route_name;
+  if(modeltype==&routing_models[SURF_MODEL_FULL]) {
+    dict_bypassRoutes = ((routing_component_full_t)rc)->bypassRoutes;
+  } else if(modeltype==&routing_models[SURF_MODEL_FLOYD]) {
+    dict_bypassRoutes = ((routing_component_floyd_t)rc)->bypassRoutes;
+  } else if(modeltype==&routing_models[SURF_MODEL_DIJKSTRA]||
+          modeltype==&routing_models[SURF_MODEL_DIJKSTRACACHE]) {
+    dict_bypassRoutes = ((routing_component_dijkstra_t)rc)->bypassRoutes;
+  } else xbt_die("\"generic_set_bypassroute\" not support");
+  route_name = bprintf("%s#%s",src,dst);
+  xbt_assert2(xbt_dynar_length(e_route->generic_route.link_list)>0, "Invalid count of links, must be greater than zero (%s,%s)",src,dst);
+  xbt_assert4(!xbt_dict_get_or_null(dict_bypassRoutes,route_name),
+    "The bypass route between \"%s\"(\"%s\") and \"%s\"(\"%s\") already exist",src,e_route->src_gateway,dst,e_route->dst_gateway);
+    
+  route_extended_t new_e_route = generic_new_extended_route(SURF_ROUTING_RECURSIVE,e_route,0);
+  xbt_dynar_free( &(e_route->generic_route.link_list) );
+  xbt_free(e_route);
+  
+  xbt_dict_set(dict_bypassRoutes, route_name, new_e_route, (void(*)(void*))generic_free_extended_route ); 
+  xbt_free(route_name);
+}
+
+/* ************************************************************************** */
+/* *********************** GENERIC BUSINESS METHODS ************************* */
+
+static route_extended_t generic_get_bypassroute(routing_component_t rc, const char* src, const char* dst) {
+  model_type_t modeltype = rc->routing;
+  xbt_dict_t dict_bypassRoutes;
+  
+  if(modeltype==&routing_models[SURF_MODEL_FULL]) {
+    dict_bypassRoutes = ((routing_component_full_t)rc)->bypassRoutes;
+  } else if(modeltype==&routing_models[SURF_MODEL_FLOYD]) {
+    dict_bypassRoutes = ((routing_component_floyd_t)rc)->bypassRoutes;
+  } else if(modeltype==&routing_models[SURF_MODEL_DIJKSTRA]||
+          modeltype==&routing_models[SURF_MODEL_DIJKSTRACACHE]) {
+    dict_bypassRoutes = ((routing_component_dijkstra_t)rc)->bypassRoutes;
+  } else xbt_die("\"generic_set_bypassroute\" not support");
+
+  routing_component_t src_as, dst_as;
+  int index_src, index_dst;
+  xbt_dynar_t path_src = NULL;
+  xbt_dynar_t path_dst = NULL;
+  routing_component_t current = NULL;
+  routing_component_t* current_src = NULL;
+  routing_component_t* current_dst = NULL;
+
+  /* (1) find the as where the src and dst are located */
+  src_as = xbt_dict_get_or_null(global_routing->where_network_elements,src);
+  dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,dst); 
+  xbt_assert2(src_as&&dst_as, "Ask for route \"from\"(%s) or \"to\"(%s) no found",src,dst);
+  /* (2) find the path to the root routing component */
+  path_src = xbt_dynar_new(sizeof(routing_component_t), NULL);
+  current = src_as; 
+  while( current != NULL ) {
+    xbt_dynar_push(path_src,&current);
+    current = current->routing_father;
+  }
+  path_dst = xbt_dynar_new(sizeof(routing_component_t), NULL);
+  current = dst_as; 
+  while( current != NULL ) {
+    xbt_dynar_push(path_dst,&current);
+    current = current->routing_father;
+  }
+
+  /* (3) find the common father */
+  index_src  = (path_src->used)-1;
+  index_dst  = (path_dst->used)-1;
+  current_src = xbt_dynar_get_ptr(path_src,index_src);
+  current_dst = xbt_dynar_get_ptr(path_dst,index_dst);
+  while( index_src >= 0 && index_dst >= 0 && *current_src == *current_dst ) {
+    routing_component_t *tmp_src,*tmp_dst;
+    tmp_src = xbt_dynar_pop_ptr(path_src);
+    tmp_dst = xbt_dynar_pop_ptr(path_dst);
+    index_src--;
+    index_dst--;
+    current_src = xbt_dynar_get_ptr(path_src,index_src);
+    current_dst = xbt_dynar_get_ptr(path_dst,index_dst);
+  }
+  
+  int max_index_src = (path_src->used)-1;
+  int max_index_dst = (path_dst->used)-1;
+  
+  int max_index = max(max_index_src,max_index_dst);
+  int i, max;
+ route_extended_t e_route_bypass = NULL;
+  for( max=0;max<=max_index;max++)
+  {
+    for(i=0;i<max;i++)
+    {
+      if( i <= max_index_src  && max <= max_index_dst ) {
+       char* route_name = bprintf("%s#%s",
+                                  (*(routing_component_t*)(xbt_dynar_get_ptr(path_src,i)))->name,
+                                  (*(routing_component_t*)(xbt_dynar_get_ptr(path_dst,max)))->name);
+       e_route_bypass = xbt_dict_get_or_null(dict_bypassRoutes,route_name);
+       xbt_free(route_name);
+      }
+      if( e_route_bypass ) break;
+      if( max <= max_index_src  && i <= max_index_dst ) {
+       char* route_name = bprintf("%s#%s",
+                                  (*(routing_component_t*)(xbt_dynar_get_ptr(path_src,max)))->name,
+                                  (*(routing_component_t*)(xbt_dynar_get_ptr(path_dst,i)))->name);
+       e_route_bypass = xbt_dict_get_or_null(dict_bypassRoutes,route_name);
+       xbt_free(route_name);
+      }
+      if( e_route_bypass ) break;
+    }
+    
+    if( e_route_bypass ) break;
+     
+    if( max <= max_index_src  && max <= max_index_dst ) {
+       char* route_name = bprintf("%s#%s",
+                                  (*(routing_component_t*)(xbt_dynar_get_ptr(path_src,max)))->name,
+                                  (*(routing_component_t*)(xbt_dynar_get_ptr(path_dst,max)))->name);
+       e_route_bypass = xbt_dict_get_or_null(dict_bypassRoutes,route_name);
+       xbt_free(route_name);
+      }
+    if( e_route_bypass ) break;
+  }
+
+  xbt_dynar_free(&path_src);
+  xbt_dynar_free(&path_dst);
+  
+  route_extended_t new_e_route = NULL;
+  
+  if(e_route_bypass) {
+    void* link;
+    unsigned int cpt=0;
+    new_e_route = xbt_new0(s_route_extended_t,1);
+    new_e_route->src_gateway = e_route_bypass->src_gateway;
+    new_e_route->dst_gateway = e_route_bypass->dst_gateway;
+    new_e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+    xbt_dynar_foreach(e_route_bypass->generic_route.link_list, cpt, link) {
+      xbt_dynar_push(new_e_route->generic_route.link_list,&link);
+    }
+  }
+
+  return new_e_route;
+}
+
+/* ************************************************************************** */
+/* ************************* GENERIC AUX FUNCTIONS ************************** */
+
+static route_extended_t generic_new_extended_route(e_surf_routing_hierarchy_t hierarchy, void* data, int order) {
+  
+  char *link_name;
+  route_extended_t e_route, new_e_route;
+  route_t route;
+  unsigned int cpt;
+  xbt_dynar_t links, links_id;
+  
+  new_e_route = xbt_new0(s_route_extended_t,1);
+  new_e_route->generic_route.link_list = xbt_dynar_new(global_routing->size_of_link,NULL);
+  new_e_route->src_gateway = NULL;
+  new_e_route->dst_gateway = NULL;
+
+  xbt_assert0(hierarchy == SURF_ROUTING_BASE || hierarchy == SURF_ROUTING_RECURSIVE,
+      "the hierarchy type is not defined");
+  
+  if(hierarchy == SURF_ROUTING_BASE ) {
+    
+    route = (route_t)data;
+    links = route->link_list;
+    
+  } else if(hierarchy == SURF_ROUTING_RECURSIVE ) {
+
+    e_route = (route_extended_t)data;
+    xbt_assert0(e_route->src_gateway&&e_route->dst_gateway,"bad gateway, is null");
+    links = e_route->generic_route.link_list;
+    
+    /* remeber not erase the gateway names */
+    new_e_route->src_gateway = e_route->src_gateway;
+    new_e_route->dst_gateway = e_route->dst_gateway;
+  }
+  
+  links_id = new_e_route->generic_route.link_list;
+  
+  xbt_dynar_foreach(links, cpt, link_name) {
+    
+    void* link = xbt_dict_get_or_null(surf_network_model->resource_set, link_name);
+    if (link)
+    {
+      if( order )
+        xbt_dynar_push(links_id,&link);
+      else
+        xbt_dynar_unshift(links_id,&link);
+    }
+    else
+      THROW1(mismatch_error,0,"Link %s not found", link_name);
+  }
+  return new_e_route;
+}
+
+static void generic_free_extended_route(route_extended_t e_route) {
+  if(e_route) {
+    xbt_dynar_free(&(e_route->generic_route.link_list));
+    if(e_route->src_gateway) xbt_free(e_route->src_gateway);
+    if(e_route->dst_gateway) xbt_free(e_route->dst_gateway);
+    xbt_free(e_route);
+  }
+}
+
+static routing_component_t generic_as_exist(routing_component_t find_from, routing_component_t to_find) {
+  xbt_dict_cursor_t cursor = NULL;
+  char *key;
+  int found=0;
+  routing_component_t elem;
+  xbt_dict_foreach(find_from->routing_sons, cursor, key, elem) {
+    if( to_find == elem || generic_as_exist(elem,to_find) ){
+      found=1;
+      break;
+    }
+  }
+  if(found) return to_find;
+  return NULL;
+}
+
+static routing_component_t generic_autonomous_system_exist(routing_component_t rc, char* element) {
+  routing_component_t element_as, result, elem;
+  xbt_dict_cursor_t cursor = NULL;
+  char *key;
+  element_as = xbt_dict_get_or_null(global_routing->where_network_elements,element);
+  result = ((routing_component_t)-1);
+  if(element_as!=rc)
+    result = generic_as_exist(rc,element_as);
+  
+  if(result)
+  {
+    xbt_dict_foreach(element_as->routing_sons, cursor, key, elem) {
+      if( !strcmp(elem->name,element) ) return element_as;
+    }
+  }
+  return NULL;
+}
+
+static routing_component_t generic_processing_units_exist(routing_component_t rc, char* element) {
+  routing_component_t element_as;
+  element_as = xbt_dict_get_or_null(global_routing->where_network_elements,element);
+  if(element_as==rc) return element_as;
+  return generic_as_exist(rc,element_as);
+}
+
+static void generic_src_dst_check(routing_component_t rc, const char* src, const char* dst) {
+  
+  routing_component_t src_as = xbt_dict_get_or_null(global_routing->where_network_elements,src);
+  routing_component_t dst_as = xbt_dict_get_or_null(global_routing->where_network_elements,dst);
+   
+  xbt_assert3(src_as != NULL && dst_as  != NULL, 
+      "Ask for route \"from\"(%s) or \"to\"(%s) no found at AS \"%s\"",src,dst,rc->name);
+  xbt_assert4(src_as == dst_as,
+      "The src(%s in %s) and dst(%s in %s) are in differents AS",src,src_as->name,dst,dst_as->name);
+  xbt_assert2(rc == dst_as,
+      "The routing component of src and dst is not the same as the network elements belong (%s==%s)",rc->name,dst_as->name);
+}
+        
 ////////////////////////////////////////////////////////////////////////////////
 // HERE FINISH THE NEW CODE
 ////////////////////////////////////////////////////////////////////////////////
@@ -1418,8 +1934,8 @@ static void print_tree(routing_component_t rc) {
   if( rc->routing == &(routing_models[SURF_MODEL_FULL]) )
   { xbt_dict_foreach(((routing_component_full_t)rc)->to_index, cursor, key, val) { printf("<%s-%d> ",key,*val); } }
   else if( rc->routing == &(routing_models[SURF_MODEL_FLOYD]) )
-  { xbt_dict_foreach(((routing_component_floyd_t)rc)->predecessor_to_index, cursor, key, val) { printf("<%s-%d> ",key,*val); } 
-    xbt_dict_foreach(((routing_component_floyd_t)rc)->AS_to_index, cursor, key, val) { printf("<%s-%d> ",key,*val); } }
+  { xbt_dict_foreach(((routing_component_floyd_t)rc)->to_index, cursor, key, val) { printf("<%s-%d> ",key,*val); } 
+  }
   else
       xbt_assert0(0, "Invalid model for call \"print_tree\"");
   printf("\n");  
@@ -1436,64 +1952,69 @@ static void print_global() {
   xbt_dict_cursor_t cursor = NULL;
   char *key;
   routing_component_t elem;  
-  xbt_dict_foreach(global_routing->where_network_elements, cursor, key, elem) {
-    printf("<%s>\n",key);
-  }
+  xbt_dict_foreach(global_routing->where_network_elements, cursor, key, elem) { printf("<%s>\n",key); }
 }
 
 //...... DEBUG ONLY .... //
 static void print_AS_start(void) { printf("AS!!! %s y se rutea \"%s\"\n",A_surfxml_AS_id,A_surfxml_AS_routing); }
-static void print_AS_end(void) { printf("AS!!! %s\n",A_surfxml_AS_id); }
-static void print_host(void) { printf("host!!! %s\n",A_surfxml_host_id); }
-static void print_link(void) { printf("link!!! %s\n",A_surfxml_link_id); }
-static void print_route(void) { printf("route!!! %s a %s\n",A_surfxml_route_src,A_surfxml_route_dst); }
-static void print_ctn(void) { printf("ctn!!! %s\n",A_surfxml_link_c_ctn_id); }
+static void print_AS_end(void)   { printf("AS!!! %s\n",A_surfxml_AS_id); }
+static void print_host(void)     { printf("host!!! %s\n",A_surfxml_host_id); }
+static void print_link(void)     { printf("link!!! %s\n",A_surfxml_link_id); }
+static void print_route(void)    { printf("route!!! %s a %s\n",A_surfxml_route_src,A_surfxml_route_dst); }
+static void print_ctn(void)      { printf("ctn!!! %s\n",A_surfxml_link_c_ctn_id); }
 
 //...... DEBUG ONLY .... //
-static void DEGUB_exit(void) {
-  
-  printf("-------- print tree elements -----\n");
-  print_tree(global_routing->root);
-  printf("----------------------------------\n\n");
+static void DEBUG_exit(void) {
   
-  printf("-------- network_elements --------\n");
-  print_global();
-  printf("----------------------------------\n\n");
+//   printf("-------- print tree elements -----\n");
+//   print_tree(global_routing->root);
+//   printf("----------------------------------\n\n");
+//   
+//   printf("-------- network_elements --------\n");
+//   print_global();
+//   printf("----------------------------------\n\n");
   
-//   char* names[] = { "11.A","11.B","11.C","121.A","121.B","122.A","13.A","13.B"};
+//   const char* names[] = { "11.A","11.B","11.C","121.A","121.B","122.A","13.A","13.B"};
 //   int i,j,total = 8;
 
 //   printf("-- print all the example routes --\n");
-//   char* names[] = { "11.A","11.B","11.C"};
+//   const char* names[] = { "11.A","11.B","11.C"};
 //   int i,j,total = 3;
 
-//   char* names[] = { "141.A","141.B","143.A","143.B"};
+//   const char* names[] = { "141.A","141.B","143.A","143.B"};
 //   int i,j,total = 4;
 
-//   char* names[] = { "142.A","142.B","142.C" };
+//   const char* names[] = { "15.A","15.B","15.C" };
 //   int i,j,total = 3;
 
-//   char* names[] = { "142.A","142.B","142.C", "11.A","11.B","11.C","141.A","141.B","143.A","143.B","11.A","11.B","11.C","121.A","121.B","122.A","13.A","13.B"};
+//   const char* names[] = { "142.A","142.B","142.C", "11.A","11.B","11.C","141.A","141.B","143.A","143.B","11.A","11.B","11.C","121.A","121.B","122.A","13.A","13.B"};
 //   int i,j,total = 3+4+8+3;
 
-   char* names[] = { "11.A","11.B","11.C",
-                     "121.A","121.B",
-                     "122.A",
-                     "13.A","13.B",
-                     "141.A","141.B",
-                     "142.A","142.B","142.C",
-                     "143.A","143.B",
-                     "15.A","15.B","15.C"};
-   int i,j,total = 3+2+1+2+2+3+2+3;
+//   const char* names[] = { "142.A","142.B","142.C" };
+//   int i,j,total = 3;
 
+   const char* names[] = { "11.A","11.B","11.C",
+                           "121.A","121.B",
+                           "122.A",
+                           "13.A","13.B",
+                           "141.A","141.B",
+                           "142.A","142.B","142.C",
+                           "143.A","143.B",
+                           "15.A","15.B","15.C"};
+   unsigned int i,j,total = 3+2+1+2+2+3+2+3;
+
+// const char* names[] = { "141.A","143.A" };
+// int i,j,total = 2;
+   
   printf("-- print all the example routes --\n");
   xbt_dynar_t links;
   void* link;
   for(i=0;i<total;i++) {
     for(j=0;j<total;j++) {
+      printf("route from %s to %s >>>\n ",names[i],names[j]);
       links = (*(global_routing->get_route))(names[i],names[j]);
-      printf("route from %s to %s >>> ",names[i],names[j]);
-      int cpt=0;
+      printf(">>>");
+      unsigned int cpt=0;
       xbt_dynar_foreach(links, cpt, link) {
         s_surf_resource_t* generic_resource = link;
         printf(" %s",generic_resource->name);
@@ -1501,7 +2022,6 @@ static void DEGUB_exit(void) {
       printf("\n");
     }
   }
-  
   printf("----------------------------------\n\n");
   
   printf("---------- call finalize ---------\n");
@@ -1515,6 +2035,7 @@ static void DEGUB_exit(void) {
 // HERE END THE NEW CODE
 ////////////////////////////////////////////////////////////////////////////////
 
+
 // /* ************************************************************************** */
 // /* *************************** FULL ROUTING ********************************* */
 // typedef struct {