TRILL: Resilient Distribution Trees
draft-ietf-trill-resilient-trees-09

Document Type Expired Internet-Draft (individual)
Last updated 2018-07-26 (latest revision 2018-01-22)
Replaces draft-zhang-trill-resilient-trees
Stream IETF
Intended RFC status Proposed Standard
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Expired & archived
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Stream WG state Submitted to IESG for Publication
Document shepherd Donald Eastlake
Shepherd write-up Show (last changed 2017-10-18)
IESG IESG state Expired (IESG: Dead)
Consensus Boilerplate Yes
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Responsible AD Alia Atlas
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-ietf-trill-resilient-trees-09.txt

Abstract

The TRILL (Transparent Interconnection of Lots of Links) protocol provides multicast data forwarding based on IS-IS link state routing. Distribution trees are computed based on the link state information through Shortest Path First calculation. When a link on the distribution tree fails, a campus-wide re-convergence of this distribution tree will take place, which can be time consuming and may cause considerable disruption to the ongoing multicast service. This document specifies how to build backup distribution trees to protect links on the primary distribution tree. Since the backup distribution tree is built up ahead of the link failure, when a link on the primary distribution tree fails, the pre-installed backup forwarding table will be utilized to deliver multicast packets without waiting for the campus-wide re-convergence. This minimizes the service disruption. This document updates RFC 6325.

Authors

Mingui Zhang (zhangmingui@huawei.com)
Tissa Senevirathne (tsenevir@gmail.com)
Janardhanan Pathangi (path.jana@gmail.com)
Ayan Banerjee (ayabaner@cisco.com)
Anoop Ghanwani (anoop@alumni.duke.edu)

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