Service Function Chaining: Subscriber and Service Identification Use Cases and Variable-Length NSH Context Headers

Document Type Replaced Internet-Draft (sfc WG)
Authors Behcet Sarikaya  , Mohamed Boucadair  , Dirk Hugo 
Last updated 2018-10-24 (latest revision 2018-06-21)
Replaced by draft-sfc-serviceid-header
Stream Internent Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Held by WG
Polled for WG adoption but not adopted
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-sfc-serviceid-header
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document discusses how to inform Service Functions about service- and subscriber-related information for the sake of policy enforcement and appropriate SFC-inferred forwarding. Once the information is consumed by SFC-aware elements of an SFC-enabled domain, it is stripped from packets when they leave the SFC-enabled domain. Thus privacy-sensitive information is not leaked outside the domain.


Behcet Sarikaya (
Mohamed Boucadair (
Dirk Hugo (

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