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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, et al.
Filename : draft-ietf-ccamp-lsp-stitching-04.txt
Pages : 22
Date : 2006-12-4
In certain scenarios, there may be a need to combine together several
Generalized Multi-Protocol Label Switching (GMPLS) Label Switched
Paths (LSPs) such that a single end-to-end (e2e) LSP is realized and
all traffic from one constituent LSP is switched onto the next LSP.
We will refer to this as "LSP stitching", the key requirement being
that a constituent LSP not be allocated to more than one e2e LSP.
The constituent LSPs will be referred to as "LSP segments" (S-LSPs).
It may 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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