Path Computation Element (PCE) Protocol Extensions for Stateful PCE Usage in GMPLS-controlled Networks

The information below is for an old version of the document
Document Type Expired Internet-Draft (pce WG)
Last updated 2019-09-26 (latest revision 2019-03-25)
Replaces draft-ietf-pce-remote-initiated-gmpls-lsp, draft-zhang-pce-pcep-stateful-pce-gmpls
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Additional Resources
- Mailing list discussion
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Path Computation Element (PCE) facilitates Traffic Engineering (TE) based path calculation in large, multi-domain, multi-region, or multi-layer networks. The PCE communication Protocol (PCEP) has been extended to support stateful PCE functions where the PCE retains information about the paths already present in the network, but those extensions are technology-agnostic. This memo provides extensions required for PCEP so as to enable the usage of a stateful PCE capability in GMPLS-controlled networks.


Young Lee (
Haomian Zheng (
Oscar de Dios (
Victor Lopez (
Zafar Ali (

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