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I-D ACTION:draft-ietf-ospf-dc-00.txt

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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