RFC 3214 (rfc3214) - Page 1 of 11

LSP Modification Using CR-LDP

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Network Working Group                                             J. Ash
Request for Comments: 3214                                          AT&T
Category: Standards Track                                         Y. Lee
                                                        Ceterus Networks
                                                        P. Ashwood-Smith
                                                             B. Jamoussi
                                                                D. Fedyk
                                                             D. Skalecki
                                                         Nortel Networks
                                                                   L. Li
                                                            SS8 Networks
                                                            January 2002


                     LSP Modification Using CR-LDP

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

Abstract

   This document presents an approach to modify the bandwidth and
   possibly other parameters of an established CR-LSP (Constraint-based
   Routed Label Switched Paths) using CR-LDP (Constraint-based Routed
   Label Distribution Protocol) without service interruption.  After a
   CR-LSP is set up, its bandwidth reservation may need to be changed by
   the network operator, due to the new requirements for the traffic
   carried on that CR-LSP.  The LSP modification feature can be
   supported by CR-LDP by use of the _modify_value for the _action
   indicator flag_ in the LSPID TLV.  This feature has application in
   dynamic network resources management where traffic of different
   priorities and service classes is involved.










Ash, et al.                 Standards Track
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