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RFC 8706
Title: Restart Signaling for IS-IS
Author: L. Ginsberg,
P. Wells
Status: Standards Track
Stream: IETF
Date: February 2020
Mailbox: [email protected],
[email protected]
Pages: 22
Obsoletes: RFC 5306
I-D Tag: draft-ietf-lsr-isis-rfc5306bis-09.txt
URL: https://www.rfc-editor.org/info/rfc8706
DOI: 10.17487/RFC8706
This document describes a mechanism for a restarting router to signal
to its neighbors that it is restarting, allowing them to reestablish
their adjacencies without cycling through the DOWN state while still
correctly initiating database synchronization.
This document additionally describes a mechanism for a router to
signal its neighbors that it is preparing to initiate a restart while
maintaining forwarding-plane state. This allows the neighbors to
maintain their adjacencies until the router has restarted but also
allows the neighbors to bring the adjacencies down in the event of
other topology changes.
This document additionally describes a mechanism for a restarting
router to determine when it has achieved Link State Protocol Data
Unit (LSP) database synchronization with its neighbors and a
mechanism to optimize LSP database synchronization while minimizing
transient routing disruption when a router starts.
This document obsoletes RFC 5306.
This document is a product of the Link State Routing Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
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