[NSIS] Proposed Liaison Statement to ITU-T SG 11 on Flow State Aware signalling
Magnus Westerlund <magnus.westerlund@ericsson.com> Fri, 25 April 2008 12:07 UTC
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Date: Fri, 25 Apr 2008 14:06:42 +0200
From: Magnus Westerlund <magnus.westerlund@ericsson.com>
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Cc: tsvwg <tsvwg@ietf.org>, NSIS <nsis@ietf.org>
Subject: [NSIS] Proposed Liaison Statement to ITU-T SG 11 on Flow State Aware signalling
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Please provide any comments on this draft LS before the 5th of May. The ADs will judge if there is consensus on this statement before sending it. From: IETF TSV AREA To: ITU-T SG 11 (tsg11gen@itu.int), ITU-T Q.5/11 (tsg11q5@itu.int), ITU-T WP 2/11 Session, bearer and resource control (tsg11wp2@itu.int) Cc: IETF Liaison to ITU-T on NGN Monique Morrow (mmorrow@cisco.com), IETF Liaison to ITU-T Scott Bradner (sob@harvard.edu), IETF Chair Russ Housley (chair@ietf.org), ITU-T Telecommunication Standardization Advisory Group (tsaggen@itu.int) Response Contact: Transport Area Directors: Magnus Westerlund (magnus.westerlund@ericsson.com) Lars Eggert (lars.eggert@nokia.com) Technical Contact: Magnus Westerlund (magnus.westerlund@ericsson.com), Lars Eggert (lars.eggert@nokia.com) Purpose: For action Deadline: 2008-07-27 Subject: Regarding any IETF work required for new ITU-T Recommendation Q.Flowstatesig Body: The IETF Transport Area would like to thank ITU-T SG 11 for the liaison statement titled “Comments on the IETF Liaison response on Y.2121 and the development of new Recommendation Q.Flowstatesig” (COM 11 - LS 66 –E). We appreciate SG11’s willingness to have a good cooperation and work within the agreements between our two organizations. We note your clarification on the intended deployment environment of Flow State Aware (FSA) signaling. We like to remark that although intended deployment may be limited, the associated signaling and data traffic from a FSA enabled end-system, appears to have a very high probability to be sent over the general Internet. Thus the development of a solution for such functions really should take utmost care to not have negative impact on existing end-hosts and network infrastructure. This is a major reason why any such extension proposals that affect IETF protocols will need extensive and wide review within the IETF community. Certain types of extension proposals will be required to be developed within IETF itself. We are looking forward to a liaison statement where you provide out-line of your proposed solution for our understanding and you listing where you foresee it impacting protocols and specifications that are under IETF change control. We also strongly encourage more informal contacts with IETF area directors, liaison persons, or WG chairs of relevant WGs to enable an as early as possible communication to discuss required steps to accomplish any such changes or extensions. This as each individual item may require a different process with highly varying time required to complete them. There appears to be a potential in the planned SG11 work on FSA signaling for extensions that will be required to be developed within IETF based on SG11 requirements. As Y.2121 hints at the potential usage of IP options for carrying the FSA information we would like to use this as an example for the required process within IETF for specifying such an option. Both IPv4 and IPv6 Hop-by-hop options are under the registration policy “IESG Approval, IETF Consensus or Standards Action processes” as defined by RFC 2434. Considering the potential impact on other systems from IP options the IESG are likely to require (IETF) standards action for any extension. However, the exact judgment on this will of course depend on the actual proposal. Why it is important that we as early as possible determine what extensions or changes that will be required. And in case standards actions are required, a work item needs to be chartered either in a suitable existing WG or to create a new WG. Therefore we do extend our earlier offer to run a Bird of a Feather (BOF) session on this topic at a future IETF meeting. Note that this requires preparations and the proponents for this work should contact the transport area directors. The IETF Transport Area kindly requests the following actions from SG 11: - That SG 11 as early as possible provide the IETF transport area with a general overview of the solution for FSA signaling and inform us on the foreseen impact on IETF protocols and any needed extensions or changes to protocols under IETF change control. - That SG11 provides a timeplan for when the above action can be completed and any other key points in the timeplan for completion of the new Recommendation with the work name Q. Flowstatesig. - That SG11 provides clarification on what is actually meant with the FSA transport technology being overlaid on the NGN. This Liaison message represents the views of the Transport Area directors and has been reviewed and has the consensus of the Transport Area. -- Magnus Westerlund IETF Transport Area Director & TSVWG Chair ---------------------------------------------------------------------- Multimedia Technologies, Ericsson Research EAB/TVM ---------------------------------------------------------------------- Ericsson AB | Phone +46 8 4048287 Färögatan 6 | Fax +46 8 7575550 S-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.com ---------------------------------------------------------------------- _______________________________________________ nsis mailing list nsis@ietf.org https://www.ietf.org/mailman/listinfo/nsis
- [NSIS] Proposed Liaison Statement to ITU-T SG 11 … Magnus Westerlund
- Re: [NSIS] [tsv-area] Proposed Liaison Statement … Lars Eggert