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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Multiprotocol Label Switching Working Group of the IETF.
Title : LSP Hierarchy with MPLS TE
Author(s) : K. Kompella, Y. Rekhter
Filename : draft-ietf-mpls-lsp-hierarchy-04.txt
Pages : 11
Date : 04-Feb-02
To improve scalability of Generalized MPLS (GMPLS) TE it may be
useful to aggregate TE LSPs by creating a hierarchy of such LSPs. A
way to create such a hierarchy is by (a) an LSR creating a TE LSP,
(b) the LSR forming a forwarding adjacency out of that LSP (by
advertising this LSP as a TE link into the same instance of ISIS/OSPF
as the one that was used to create the LSP), (c) allowing other LSRs
to use FAs for their path computation, and (d) nesting of LSPs
originated by other LSRs into that LSP (by using the label stack
This document describes the mechanisms to accomplish this.
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