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Changes from vers. 07 to vers. 08 (in response to WG last call) HELLO messages have been changed to include neighbor interface addresses instead of neighbor router IDs. Correspondingly, the neighbor discovery protocol maintains (for each local interface) the status of each neighbor interface instead of the status of each neighbor. Neighbor discovery has been modified slightly to allow a node to restart (clear its neighbor table) without waiting for neighbors to expire their links to the node. A minimum time between HELLO messages is specified, to ensure that the HELLO sequence number does not wrap around to the same number within NBR_HOLD_TIME. A mechanism is described for limiting the propagation radius of topology information, by limiting the reported node set to include only nodes that are within the desired radius. The Security Considerations section has been modified. |