RFC 4736 on Reoptimization of Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Loosely Routed Label Switched Path (LSP)
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Subject: RFC 4736 on Reoptimization of Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Loosely Routed Label Switched Path (LSP)
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A new Request for Comments is now available in online RFC libraries.
RFC 4736
Title: Reoptimization of Multiprotocol Label Switching
(MPLS) Traffic Engineering (TE) Loosely Routed
Label Switched Path (LSP)
Author: JP. Vasseur, Ed.,
Y. Ikejiri, R. Zhang
Status: Informational
Date: November 2006
Mailbox: jpv@cisco.com,
y.ikejiri@ntt.com,
raymond_zhang@bt.infonet.com
Pages: 14
Characters: 28850
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-ccamp-loose-path-reopt-02.txt
URL: http://www.rfc-editor.org/rfc/rfc4736.txt
This document defines a mechanism for the reoptimization of loosely
routed MPLS and GMPLS (Generalized Multiprotocol Label Switching)
Traffic Engineering (TE) Label Switched Paths (LSPs) signaled with
Resource Reservation Protocol Traffic Engineering (RSVP-TE). This
document proposes a mechanism that allows a TE LSP head-end Label
Switching Router (LSR) to trigger a new path re-evaluation on every hop
that has a next hop defined as a loose or abstract hop and a mid-point
LSR to signal to the head-end LSR that a better path exists (compared to
the current path) or that the TE LSP must be reoptimized (because of
maintenance required on the TE LSP path). The proposed mechanism
applies to the cases of intra- and inter-domain (Interior Gateway
Protocol area (IGP area) or Autonomous System) packet and non-packet
TE LSPs following _rfcs
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Authors, for further information.
Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute
...
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