A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Open Shortest Path First IGP Working Group of the
IETF.
Title : Detecting Inactive Neighbors over OSPF Demand Circuits
Author(s) : S. Rao, A. Zinin
Filename : draft-ietf-ospf-dc-00.txt
Pages : 6
Date : 14-Nov-00
OSPF [RFC2328] is a link-state intra-domain routing protocol used in
IP networks. OSPF behavior over demand circuits is optimized in
[RFC1793] to minimize the amount of overhead traffic. A part of OSPF
demand circuit extensions is the Hello suppression mechanism. This
technique allows a demand circuit to go down when no interesting
traffic is going through the link. However, it also introduces a
problem, where it becomes impossible to detect a OSPF-inactive
neighbor over such a link. This memo addresses the above problem by
introducing three mechanisms---Hello probes, limitation of the number
of LSA retransmits and flushing of self-originated LSAs.
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