Proof of Transit
Cisco Systems, Inc.
Cisco Systems, Inc.
Cisco Systems, Inc.
Cisco Systems, Inc.
Comcast
JP Morgan Chase
Marvell
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.