Evaluating OSPF Convergence with ns-3 DCE
Nicolas Rybowski, Olivier Bonaventure · 2022
OSPF routers flood link-state packets to distribute the network topology. When a link fails, the attached routers flood an updated link-state packet. These packets trigger updates to the forwarding tables of potentially all routers inside the network. This process can take from a few hundreds of milliseconds to a few seconds in large networks. The convergence affects the forwarding of data packets as transient micro-loops and black holes can happen while routers update their forwarding tables asynchronously.