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-03.txt
Pages : 20
Date : 2005-9-23
In certain scenarios, there may be a need to combine together
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 realized 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 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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