Link state agreementLink State Agreement • March 9th, 2004
agreement conventions) focus on maintaining connectivity when links or LANs fail, rather than (for example) the earliest possible use of using links that are added to the network. If a node’s distance for a
Link state agreementLink State Agreement • March 9th, 2004
Earlier notes2 proposed an agreement protocol (documented in P802.1aq clause 133) that ensures loop-free active topology(ies) without requiring that bridges cease forwarding frames after every topology change. This note proves that the forwarding rules guarantee loop-free link state operation for (a) simple shortest path destination-based unicast (b) hop- by-hop multipath unicast (c) spanning tree (unicast with possible flooding, and multicast)
