Liaison statement
LS on recent service function chaining related developments in Q4/SG11: two new draft Supplements

State Posted
Submitted Date 2021-04-16
From Group ITU-T-SG-11
From Contact Arshey Odedra
To Group sfc
To Contacts Jim Guichard
Joel Halpern
CcService Function Chaining Discussion List
Scott Mansfield
Martin Vigoureux
Alvaro Retana
John Scudder
Joel Halpern
itu-t-liaison@iab.org
Jim Guichard
Response Contact Cancan Huang
Purpose For information
Attachments SG11-LS179_Att3
SG11-LS179_Att2
SG11-LS179_Att1
SG11-LS179
Body
This LS aims to inform SG13, IETF SFC WG and JCA-IMT2020 that SG11 has started
two new work items Q.Suppl.heter_SI and Q.Suppl.pSFC.

At its virtual meeting (17-26 March 2021), ITU-T Study Group 11, particularly
Q4/11 agreed to start two new work items:

-       Draft Supplement ITU-T Q.Suppl.heter_SI "Signaling Requirements of SFC
based on heterogeneous service index in mobile scenarios" aims to specify the
signalling requirements of service function chaining based on heterogeneous SI.
This Supplement focuses on the signalling among the service function
forwarders. The A.13 justification is included as Annex C in the Q4/11 meeting
report (SG11-TD1560-R1/GEN) and the baseline text is contained in
SG11-TD1633/GEN.

-       Draft Supplement ITU-T Q.Suppl.pSFC "Signalling requirements for
parallel SFC packet processing" aims to specify the signalling requirements of
parallel SFC packet processing. The A.13 justification is included as Annex C
in the Q4/11 meeting report (SG11-TD1560-R1/GEN) and the baseline text is
contained in SG11-TD1632/GEN.

We will keep ITU-T Study Group 13, IETF SFC WG, JCA-IMT2020 informed on the
progress of these two draft Supplements and hope you can share your related
works with us if you have similar studies in this area.

Please kindly find below, in Appendix, the information of this work item using
SDN Roadmap template.