A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Common Control and Measurement Plane Working Group of the IETF.
Title : Label Switched Path Stitching with Generalized MPLS Traffic Engineering
Author(s) : A. Ayyangar, J. Vasseur
Filename : draft-ietf-ccamp-lsp-stitching-00.txt
Pages : 17
Date : 2005-4-1
In certain scenarios, there may be a need to combine together two
different Generalized Multi-Protocol Label Switching (GMPLS) Label
Switched Paths (LSPs) such that in the data plane, a single
end-to-end (e2e) LSP is achieved and all traffic from one LSP is
switched onto the other LSP. We will refer to this as "LSP
stitching". This document covers cases where: a) the node performing
the stitching does not require configuration of every LSP pair to be
stitched together b) the node performing the stitching is not the
egress of any of the LSPs c) LSP stitching not only results in an
end-to-end LSP in the data plane, but there is also a corresponding
end-to-end LSP (RSVP session) in the control plane. It might be
possible to configure a GMPLS node to switch the traffic from an LSP
for which it is the egress, to another LSP for which it is the
ingress, without requiring any signaling or routing extensions
whatsoever, completely transparent to other nodes. This will also
result in LSP stitching in the data plane. However, this document
does not cover this scenario of LSP stitching.
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