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Title : IGP Routing extensions for discovery of P2MP TE LSP Leaf LSRs
Author(s) : J. Le Roux, et al.
Filename : draft-leroux-mpls-p2mp-te-autoleaf-02.txt
Pages : 12
Date : 2006-10-22
In various situations, such as TV broadcasting with several regional
sources, it is required to setup a series of Point-To-MultiPoint
(P2MP) Traffic Engineering Label Switched Paths (TE LSPs) between a
set of head-end Label Switching Routers (LSRs) and a group of leaf
LSRs referred to as a Leaf Group. Setting up such a series of P2MP TE
LSPs requires for the set of head-end LSRs to be aware of all leaf
LSRs, which may lead to the cumbersome configuration of a potentially
large number of leaf LSRs on each head-end LSRs. Furthermore leaf
LSRs may want to dynamically join or leave a Leaf Group without
requiring manual configuration on the head-end LSRs. This document
specifies IGP routing extensions for IS-IS and OSPF so as to provide
an automatic discovery of the set of leaf LSRs members of a Leaf
Group, in order to automate the creation and modification of a series
of P2MP TE-LSPs.
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