Intermediate System to Intermediate System (IS-IS) Extensions for Maximally Redundant Trees (MRT)

Document Type Replaced Internet-Draft (isis WG)
Authors Zhenbin Li  , Nan Wu  , Quintin Zhao  , Alia Atlas  , Chris Bowers  , Jeff Tantsura 
Last updated 2015-10-14 (latest revision 2015-01-16)
Replaced by draft-ietf-isis-mrt
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Adopted by a WG
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-isis-mrt
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes necessary extensions to IS-IS to support the distributed computation of Maximally Redundant Trees (MRT). Some example uses of the MRTs include IP/LDP Fast-Reroute and global protection or live-live for multicast traffic. The extensions indicate what MRT profile(s) each router supports. Different MRT profiles can be defined to support different uses and to allow transition of capabilities. An extension is introduced to flood MRT- Ineligible links, due to administrative policy.


Zhenbin Li (
Nan Wu (
Quintin Zhao
Alia Atlas (
Chris Bowers (
Jeff Tantsura (

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