Service Chaining using Unified Source Routing Instructions

Document Type Replaced Internet-Draft (individual)
Authors Xiaohu Xu  , Stewart Bryant  , Hamid Assarpour  , Himanshu Shah  , Luis Contreras  ,  , Jeff Tantsura  , Shaowen Ma  , Martin Vigoureux 
Last updated 2017-06-29
Replaced by draft-xu-clad-spring-sr-service-chaining
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Source Packet Routing in Networking (SPRING) WG is developing an MPLS source routing mechanism. The MPLS source routing mechanism can be leveraged to realize a unified source routing instruction which works across both IPv4 and IPv6 underlays in addition to the MPLS underlay. This document describes how to leverage the unified source routing instruction to realize a transport-independent service function chaining by encoding the service function path information or service function chain information as an MPLS label stack.


Xiaohu Xu (
Stewart Bryant (
Hamid Assarpour (
Himanshu Shah (
Luis Contreras ( (
Jeff Tantsura (
Shaowen Ma (
Martin Vigoureux (

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