A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the
IETF.
Title : Integration of Network Service Header (NSH) and
Segment Routing for Service Function Chaining (SFC)
Authors : James N Guichard
Jeff Tantsura
Filename : draft-ietf-spring-nsh-sr-08.txt
Pages : 17
Date : 2021-06-29
Abstract:
This document describes the integration of Network Service Header
(NSH) and Segment Routing (SR), as well as encapsulation details, to
support Service Function Chaining (SFC) in an efficient manner while
maintaining separation of the service and transport planes as
originally intended by the SFC architecture.
Combining these technologies allows SR to be used for steering
packets between Service Function Forwarders (SFF) along a given
Service Function Path (SFP) while NSH has the responsibility for
maintaining the integrity of the service plane, the SFC instance
context, and any associated metadata.
This integration demonstrates that NSH and SR can work cooperatively
and provide the network operator with the flexibility to use
whichever transport technology makes sense in specific areas of their
network infrastructure while still maintaining an end-to-end service
plane using NSH.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-nsh-sr/
There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-spring-nsh-sr-08
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-nsh-sr-08
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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