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RFC 7775
Title: IS-IS Route Preference for Extended
IP and IPv6 Reachability
Author: L. Ginsberg, S. Litkowski, S. Previdi
Status: Standards Track
Stream: IETF
Date: February 2016
Mailbox: ginsberg@cisco.com,
stephane.litkowski@orange.com,
sprevidi@cisco.com
Pages: 11
Characters: 23624
Updates: RFC 5308
I-D Tag: draft-ietf-isis-route-preference-02.txt
URL: https://www.rfc-editor.org/info/rfc7775
DOI: http://dx.doi.org/10.17487/RFC7775
In existing specifications, the route preferences for IPv4/IPv6
Extended Reachability TLVs are not explicitly stated. There are also
inconsistencies in the definition of how the up/down bit applies to
route preference when the prefix advertisement appears in Level 2
Link State Protocol Data Units (LSPs). This document addresses these
issues.
This document is a product of the IS-IS for IP Internets 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
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standardization state and status of this protocol. Distribution of this
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