Liaison statement
LS on initiation of new work item ITU-T Q.SFCO “Signalling requirements and data models for service function chaining orchestration based on SRv6”

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State Posted
Submitted Date 2023-10-24
From Group ITU-T-SG-11
From Contact Denis ANDREEV
To Group spring
To Contacts Alvaro Retana <aretana.ietf@gmail.com>
Bruno Decraene <bruno.decraene@orange.com>
Joel Halpern <jmh@joelhalpern.com>
Cc Alvaro Retana <aretana.ietf@gmail.com>
Joel Halpern <jmh@joelhalpern.com>
Andrew Alston <andrew-ietf@liquid.tech>
itu-t-liaison@iab.org <itu-t-liaison@iab.org>
John Scudder <jgs@juniper.net>
Source Packet Routing in Networking Discussion List <spring@ietf.org>
Scott Mansfield <Scott.Mansfield@Ericsson.com>
Jim Guichard <james.n.guichard@futurewei.com>
Bruno Decraene <bruno.decraene@orange.com>
Response Contact Tatiana Kurakova <tatiana.kurakova@itu.int>
Purpose For action
Deadline 2024-04-10 Action Needed
Attachments SG11-LS112-Att-TD637-R1
SG11-LS112-Att-TD785
SG11-LS112
Body 
This LS aims to inform ITU-T SG13 and IETF WG SPRING that ITU-T SG11 has
initiated one new work item ITU-T Q.SFCO.

ITU-T SG11 would like to share the latest progress on SRv6 based SFC
orchestration signalling.

At the ITU-T SG11 closing plenary meeting on 20 October 2023, the following new
work item has been initiated.

- Q.SFCO: Signalling requirements and data models for service function chaining
orchestration based on SRv6. This draft aims to specify signalling requirements
and data models of interfaces between network controller and service
orchestrator, and between cloud controller and service orchestrator. The
signalling is to support the network controller and the cloud controller to
configure and manage the service function chaining based on the requirements of
cloud network collaborative service orchestration. The A.1 justification is
included as Annex B in the Q4/11 meeting report (SG11-TD637-R1/GEN) and the
baseline text is contained in SG11-TD785/GEN.

SG11 would like to receive your comments and collaborations on ITU-T Q.SFCO and
hope you can share your related works on SRv6 based SFC orchestration with us.

Attachments:
- SG11-TD637-R1/GEN: Report of Q4/11 meeting “Protocols for control, management
and orchestration of network resources” (Geneva, 10-20 October 2023) -
SG11-TD785/GEN: Output – Initial draft Recommendation Q.SFCO “Signalling
requirements and data models for service function chaining orchestration based
on SRv6” (Geneva, 10-20 October 2023)