A new Request for Comments is now available in online RFC libraries.
RFC 8320
Title: LDP Extensions to Support Maximally
Redundant Trees
Author: A. Atlas,
K. Tiruveedhula,
C. Bowers,
J. Tantsura,
IJ. Wijnands
Status: Standards Track
Stream: IETF
Date: February 2018
Mailbox: akatlas@juniper.net,
kishoret@juniper.net,
cbowers@juniper.net,
jefftant.ietf@gmail.com,
ice@cisco.com
Pages: 21
Characters: 47801
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-mpls-ldp-mrt-07.txt
URL: https://www.rfc-editor.org/info/rfc8320
DOI: 10.17487/RFC8320
This document specifies extensions to the Label Distribution Protocol
(LDP) to support the creation of Label Switched Paths (LSPs) for
Maximally Redundant Trees (MRTs). A prime use of MRTs is for unicast
and multicast IP/LDP Fast Reroute, which we will refer to as
"MRT-FRR".
The sole protocol extension to LDP is simply the ability to advertise
an MRT Capability. This document describes that extension and the
associated behavior expected for Label Switching Routers (LSRs) and
Label Edge Routers (LERs) advertising the MRT Capability.
MRT-FRR uses LDP multi-topology extensions, so three multi-topology
IDs have been allocated from the MPLS MT-ID space.
This document is a product of the Multiprotocol Label Switching 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
standardization state and status of this protocol. Distribution of this
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