An Architecture for IP/LDP Fast Reroute Using Maximally Redundant Trees (MRT-FRR) (RFC7812)
Original Publication Date: 2016-Jun-01
Included in the Prior Art Database: 2016-Jun-29
Internet Society Requests For Comment (RFCs)
A. Atlas: AUTHOR [+2]
This document describes a solution for IP/LDP fast reroute [RFC5714]. MRT-FRR creates two alternate forwarding trees that are distinct from the primary next-hop forwarding used during stable operation. These two trees are maximally diverse from each other, providing link and node protection for 100% of paths and failures as long as the failure does not cut the network into multiple pieces. This document defines the architecture for IP/LDP fast reroute with MRT.
Internet Engineering Task Force (IETF) A. Atlas Request for Comments: 7812 C. Bowers Category: Standards Track Juniper Networks ISSN: 2070-1721 G. Enyedi Ericsson June 2016
An Architecture for IP/LDP Fast Reroute Using Maximally Redundant Trees (MRT-FRR)
This document defines the architecture for IP and LDP Fast Reroute using Maximally Redundant Trees (MRT-FRR). MRT-FRR is a technology that gives link-protection and node-protection with 100% coverage in any network topology that is still connected after the failure.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7812.
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al. Standards Track [Page 1]
RFC 7812 MRT Unicast FRR Architecture June 2016
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Importance of 100% Coverage . . . . . . . . . . . . . . . 4
1.2. Partial Deployment and Backwards Compatibility . . . . . 5
2. Requirements Language . . . . . . . ....