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Advertising Service Functions Using IS-IS

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Xiaohu Xu , Hongyi Huang , Himanshu C. Shah , Luis M. Contreras
Last updated 2023-09-10 (Latest revision 2023-03-09)
Replaces draft-xu-isis-service-function-adv
RFC stream (None)
Intended RFC status (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This Internet-Draft is no longer active.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:


The MPLS source routing mechanism developed by Source Packet Routing in Networking (SPRING) WG can be leveraged to realize a unified source routing instruction which works across both IPv4 and IPv6 underlays in addition to the MPLS underlay. The unified source routing instruction can be used 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. This document describes how to advertise service functions and their corresponding attributes (e.g., service function label) using IS-IS.


Xiaohu Xu
Hongyi Huang
Himanshu C. Shah
Luis M. Contreras

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