PIM Neighbor Hello GenId Option

Document Type Expired Internet-Draft (pim WG)
Authors Billy Ng  , Y. Li 
Last updated 1999-06-22
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This memo addresses an issue with the current PIM in Sparse Mode. In the case of router reboot, PIM networks have to converge slowly and suffer long outage of traffic flows. This memo proposes a Generation Identifier (GenId) Option in PIM Hello messages. It enables neighbors to quickly detect router reboot and thus to synchronize RP-Set information and forwarding states by triggering Bootstrap and Join/Prune messages to the rebooted router. The rebooted router then is able to quickly recover from the reboot.


Billy Ng (bng@NortelNetwork.com)
Y. Li (yli@baynetworks.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)