Once the detailed actions at each of the affected nodes is completed,
the network dynamics models will
notify the RouteLogic instance (RouteLogic::notify)../ns-2/route-proto.tclRouteLogic::notify
of changes to topology.
This procedure invokes the procedure compute-all
for each of the protocols that were ever installed at any of the nodes.
Centralized routing protocols such as session routing use this signal to
recompute the routes to the topology.
Finally, the RouteLogic::notify procedure notifies
any instances of centralized multicast that are operating at the node.