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RFC 9015: BGP Control Plane for the Network Service Header in Service Function Chaining

In plain English — editorial summary, not part of the RFC

This document describes the use of BGP as a control plane for networks that support service function chaining. The document introduces a new BGP address family called the "Service Function Chain (SFC) Address Family Identifier / Subsequent Address Family Identifier" (SFC AFI/SAFI) with two Route Types. One Route Type is originated by a node to advertise that it hosts a particular instance of a specified service function. This Route Type also provides "instructions" on how to send a packet to the hosting node in a way that indicates that the service function has to be applied to the packet. The other Route Type is used by a controller to advertise the paths of "chains" of service functions and give a unique designator to each such path so that they can be used in conjunction with the Network Service Header (NSH) defined in RFC 8300. This document adopts the service function chaining architecture described in RFC 7665.

Document record

Document ID
RFC9015
Published
June 2021
Authors
A. Farrel; J. Drake; E. Rosen; J. Uttaro; L. Jalil
Status
PROPOSED STANDARD
Stream
IETF
Area
rtg
Pages
59
Also known as
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/9015-bgp-control-plane-for-the-network-service-header-in-service-function-chaining