Maximally Redundant Trees in Segment Routing

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Document Type Expired Internet-Draft (individual)
Authors Gaurav Agrawal  , N Anil  , Vinod KumarS 
Last updated 2016-04-14 (latest revision 2015-10-12)
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This document presents a Fast Reroute (FRR) approach aimed at providing link and node protection of node and adjacency segments within the Segment Routing (SR) framework. This FRR behavior builds on Maximally Redundant Trees (MRT) FRR algorithm [I-D.atlas-rtgwg- mrt-mc-arch]. Fast-Reroute with Maximally Redundant Trees (MRT-FRR) using Segment routing is a technology that gives link-protection and node- protection with 100% coverage in any network topology that is still connected after the failure. MRT is computational efficient. For any router in the network, the MRT computation is less than the LFA computation for a node with three or more neighbors in SR domain (Ex: Topology Independent Fast Reroute).


Gaurav Agrawal (
N Anil (
Vinod KumarS (

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