A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Path Computation Element (PCE) Protocol Extension for Stateful PCE Usage in GMPLS Networks
Author(s) : Xian Zhang
Young Lee
Ramon Casellas
Oscar Gonzalez de Dios
Filename : draft-zhang-pce-pcep-stateful-pce-gmpls-00.txt
Pages : 15
Date : 2012-07-08
Abstract:
The Path Computation Element (PCE) facilitates Traffic Engineering
(TE) based path calculation in large, multi-domain, multi-region, or
multi-layer networks. PCE can be stateless or stateful. With the LSP
state information acquired from the network, a stateful PCE exhibits
superiority in facilitating a wide variety of applications,
especially in GMPLS networks, such as impairment-aware routing and
wavelength assignment in wavelength-switched optical networks (WSON),
time-based scheduling applications. This memo provides extensions
required for PCE communication protocol (i.e. PCEP) so as to enable
the usage of a stateful PCE capability in GMPLS networks. To be more
specific, the PCEP extensions specified in this memo include not
only new objects but also modification of existing objects in PCEP
messages, with regard to stateful PCE usage in GMPLS networks.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-zhang-pce-pcep-stateful-pce-gmpls
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-zhang-pce-pcep-stateful-pce-gmpls-00
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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