A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Loop-free convergence using ordered FIB updates
Author(s) : P. Francois, et al.
Filename : draft-francois-ordered-fib-00.txt
Pages : 12
Date : 2005-7-11
This draft proposes a mechanism to prevent transient loops during
non-urgent topology changes by ordering the FIB updates on routers,
in networks which use link state routing protocols. This mechanism
can be used in case of graceful link shutdowns, metric changes and
when a link is enabled. The solution can also be used in conjunction
with an IPFRR mechanism wich turns a sudden link failure in a non-
urgent change, by ensuring a local protection of the link. After a
non-urgent topology change, each routers computes a rank that defines
the time at which it can safely update its FIB. A completion message
mechanism is also proposed in order to speed up the convergence
process.
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