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RFC 8741
Title: Ability for a Stateful Path Computation
Element (PCE) to Request and Obtain
Control of a Label Switched Path (LSP)
Author: A. Raghuram,
A. Goddard,
J. Karthik,
S. Sivabalan,
M. Negi
Status: Standards Track
Stream: IETF
Date: March 2020
Mailbox: [email protected],
[email protected],
[email protected],
[email protected],
[email protected]
Pages: 11
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-pce-lsp-control-request-11.txt
URL: https://www.rfc-editor.org/info/rfc8741
DOI: 10.17487/RFC8741
A stateful Path Computation Element (PCE) retains information about
the placement of Multiprotocol Label Switching (MPLS) Traffic
Engineering Label Switched Paths (TE LSPs). When a PCE has stateful
control over LSPs, it may send indications to LSP head-ends to modify
the attributes (especially the paths) of the LSPs. A Path Computation
Client (PCC) that has set up LSPs under local configuration may
delegate control of those LSPs to a stateful PCE.
There are use cases in which a stateful PCE may wish to obtain
control of locally configured LSPs that it is aware of but have not
been delegated to the PCE.
This document describes an extension to the Path Computation Element
Communication Protocol (PCEP) to enable a PCE to make requests for
such control.
This document is a product of the Path Computation Element Working Group of the
IETF.
This is now a Proposed Standard.
STANDARDS TRACK: 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 Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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