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Proof of Transit

Document Type Expired Internet-Draft (sfc WG)
Expired & archived
Authors Frank Brockners , Shwetha Bhandari , Tal Mizrahi , Sashank Dara , Stephen Youell
Last updated 2021-11-08 (Latest revision 2020-11-01)
Replaces draft-brockners-proof-of-transit
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Experimental
Yang Validation 0 errors, 1 warnings
Additional resources Yang catalog entry for ietf-pot-profile@2020-09-08.yang
Yang impact analysis for draft-ietf-sfc-proof-of-transit
Mailing list discussion
Stream WG state Submitted to IESG for Publication
Document shepherd Nagendra Kumar Nainar
Shepherd write-up Show Last changed 2020-08-02
IESG IESG state Expired (IESG: Dead)
Action Holders
Consensus boilerplate Yes
Telechat date (None)
Responsible AD Martin Vigoureux
Send notices to Nagendra Nainar <>
IANA IANA review state IANA OK - Actions Needed
IANA expert review state Expert Reviews OK

This Internet-Draft is no longer active.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


Several technologies such as Traffic Engineering (TE), Service Function Chaining (SFC), and policy based routing are used to steer traffic through a specific, user-defined path. This document defines mechanisms to securely prove that traffic transited a defined path. These mechanisms allow to securely verify whether, within a given path, all packets traversed all the nodes that they are supposed to visit. This document specifies a data model to enable these mechanisms using YANG.


Frank Brockners
Shwetha Bhandari
Tal Mizrahi
Sashank Dara
Stephen Youell

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