Routing Extensions for Discovery of Role-based MPLS Label Switching Router (MPLS LSR) Traffic Engineering (TE) Mesh Membership

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Last updated 2014-12-19 (latest revision 2014-06-17)
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A Traffic Engineering (TE) mesh-group is defined as a group of Label Switch Routers (LSRs) that are connected by a full mesh of TE LSPs. Routing (OSPF and IS-IS) extensions for discovery Multiprotocol Label Switching (MPLS) LSR TE mesh membership has been defined to automate the creation of mesh of TE LSPs. This document introduces a role-based TE mesh-group that applies to the scenarios where full mesh TE LSPs is not necessary and TE LSPs setup depends on the roles of LSRs in a TE mesh-group. Interior Gateway Protocol (IGP) routing extensions for automatic discovery of role-based TE mesh membership are defined accordingly.


Zhenbin Li (
Mach Chen (
Greg Mirsky (

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