id | String (mandatory) | The identifier of the host. facilitates referring to this AS.
speed | double (mandatory) | Computational power of every core of this host in FLOPS (must be positive)
core | int (defaults to 1) | Number of cores (see @ref howto_multicore)
-state | optionally "OFF" | If set to OFF, the host is initially turned off.
availability_file | File name (optional) | (Relative or absolute) filename to use as input; must contain availability traces for this host. The syntax of this file is defined below.
state_file | File name (optional) | File to use as a state profile (see @ref howto_churn)
coordinates | String (mandatory when using Vivaldi routing) | The coordinates of this host (see @ref pf_P2P_tags).
@note
Please note that as of now, it is impossible to change attributes such as,
- amount of cores (always set to 1), the initial state of hosts/links
- (always set to ON), the sharing policy of the links (always set to @ref pf_sharing_policy_splitduplex "SPLITDUPLEX").
+ amount of cores (always set to 1), the sharing policy of the links (always set to @ref pf_sharing_policy_splitduplex "SPLITDUPLEX").
#### Example ####
Attribute name | Mandatory | Values | Description
--------------- | --------- | ------ | -----------
id | yes | string | The identifier of the link to be used when referring to it.
-bandwidth | yes | int | Maximum bandwidth for this link, given in bytes/s
+bandwidth | yes | string | Maximum bandwidth for this link, along with its unit.
latency | no | double (default: 0.0) | Latency for this link.
sharing_policy | no | @ref sharing_policy_shared "SHARED"@|@ref pf_sharing_policy_fatpipe "FATPIPE"@|@ref pf_sharing_policy_splitduplex "SPLITDUPLEX" (default: SHARED) | Sharing policy for the link.
-state | no | ON@|OFF (default: ON) | Allows you to to turn this link on or off (working / not working)
bandwidth_file | no | string | Allows you to use a file as input for bandwidth.
latency_file | no | string | Allows you to use a file as input for latency.
state_file | no | string | Allows you to use a file as input for states.
@li <b>Cluster</b>: Cluster routing, specific to cluster tag, should
not be used.
+@subsection pf_loopback I want to specify the characteristics of the loopback link!
+
+Each routing model automatically adds a loopback link for each declared host, i.e.,
+a network route from the host to itself, if no such route is declared in the XML
+file. This default link has a bandwidth of 498 Mb/s, a latency of 15 microseconds,
+and is <b>not</b> shared among network flows.
+
+If you want to specify the characteristics of the loopback link for a given host, you
+just have to specify a route from this host to itself with the desired characteristics
+in the XML file. This will prevent the routing model to add and use the default
+loopback link.
+
@subsection pf_switch I want to describe a switch but there is no switch tag!
Actually we did not include switch tag. But when you're trying to
