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Path Computation Element Communication Protocol (PCEP) Extensions to Enable IFIT

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Replaced".
Expired & archived
Authors Hang Yuan , Tianran Zhou , Weidong Li , Giuseppe Fioccola , Yali Wang
Last updated 2022-01-10 (Latest revision 2021-07-09)
Replaces draft-chen-pce-sr-policy-ifit
Replaced by draft-ietf-pce-pcep-ifit
RFC stream (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document defines PCEP extensions to distribute In-situ Flow Information Telemetry (IFIT) information. So that IFIT behavior can be enabled automatically when the path is instantiated. In-situ Flow Information Telemetry (IFIT) refers to network OAM data plane on-path telemetry techniques, in particular the most popular are In-situ OAM (IOAM) and Alternate Marking. The IFIT attributes here described can be generalized for all path types but the application to Segment Routing (SR) is considered in this document. This document extends PCEP to carry the IFIT attributes under the stateful PCE model.


Hang Yuan
Tianran Zhou
Weidong Li
Giuseppe Fioccola
Yali Wang

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