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Optimizations of Label Switched Path State Synchronization Procedures for a Stateful PCE
draft-minei-pce-stateful-sync-optimizations-02

Document Type Replaced Internet-Draft (pce WG)
Expired & archived
Authors Edward Crabbe , Jan Medved , Ina Minei , Robert Varga , Xian Zhang , Dhruv Dhody
Last updated 2014-03-10 (Latest revision 2014-03-02)
Replaced by draft-ietf-pce-stateful-sync-optimizations
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Formats
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-pce-stateful-sync-optimizations
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

A stateful Path Computation Element (PCE) has access to not only the information disseminated by the network's Interior Gateway Protocol (IGP), but also the set of active paths and their reserved resources for its computation. The additional Label Switched Path (LSP) state information allows the PCE to compute constrained paths while considering individual LSPs and their interactions. This requires a reliable state synchronization mechanism between the PCE and the network, PCE and path computation clients (PCCs), and between cooperating PCEs. The basic mechanism for state synchronization is part of the stateful PCE specification. This draft presents motivations for optimizations to the base state synchronization procedure and specifies the required Path Computation Element Communication Protocol (PCEP) extensions.

Authors

Edward Crabbe
Jan Medved
Ina Minei
Robert Varga
Xian Zhang
Dhruv Dhody

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)