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 : Graceful OSPF Restart
Author(s) : J. Moy et al.
Filename : draft-ietf-ospf-hitless-restart-08.txt
Pages : 15
Date : 2003-7-25
This memo documents an enhancement to the OSPF routing protocol,
whereby an OSPF router can stay on the forwarding path even as its
OSPF software is restarted. This is called 'graceful restart' or
'non-stop forwarding'. A restarting router may not be capable of
adjusting its forwarding in a timely manner when the network
topology changes. In order to avoid the possible resulting routing
loops the procedure in this memo automatically reverts to a normal
OSPF restart when such a topology change is detected, or when one or
more of the restarting router's neighbors do not support the
enhancements in this memo. Proper network operation during a
graceful restart makes assumptions upon the operating environment
of the restarting router; these assumptions are also documented.
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