#### Sharing policy ####
By default a network link is SHARED, i.e., if two or more data flows go
-through a link, the bandwidth is shared fairly among the data flows. This
+through a link, the bandwidth is shared fairly among all data flows. This
is similar to the sharing policy TCP uses.
On the other hand, if a link is defined as a FATPIPE,
-each flow going through this link will be allocated the complete bandwidth,
-i.e., no sharing occurs and the bandwidth is only limiting single flows:
+each flow going through this link will be provided with the complete bandwidth,
+i.e., no sharing occurs and the bandwidth is only limiting each flow individually.
The complete bandwidth provided by this link in this mode
-is ``#flows*bandwidth``.
+is ``#flows*bandwidth``, with at most ``bandwidth`` being available per flow.
+
+Using the FATPIPE mode allows to model backbones that won't affect performance
+(except latency).
The last mode available is FULLDUPLEX. This means that SimGrid will
automatically generate two links (one carrying the suffix _UP and the other the
