Proof of Transit

Document Type Replaced Internet-Draft (sfc WG)
Authors Frank Brockners  , Shwetha Bhandari  , Sashank Dara  , Carlos Pignataro  , John Leddy  , Stephen Youell  , David Mozes  , Tal Mizrahi 
Last updated 2018-06-11 (latest revision 2018-05-07)
Replaced by draft-ietf-sfc-proof-of-transit
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Additional Resources
- Yang catalog entry for ietf-pot-profile@2016-06-15.yang
- Yang impact analysis for draft-brockners-proof-of-transit
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Stream WG state Adopted by a WG
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IESG IESG state Replaced by draft-ietf-sfc-proof-of-transit
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


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 said 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.


Frank Brockners (
Shwetha Bhandari (
Sashank Dara (
Carlos Pignataro (
John Leddy (
Stephen Youell (
David Mozes (
Tal Mizrahi (

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