Subject: draft meeting notes

From: Lyndon Ong <[email-masked]>
Date: Thu, 16 Aug 2001 18:58:18 -0700

Folks,

Attached are draft meeting notes from London.  Please let me
know any comments or corrections by next Friday, August 24th.

Thanks,

L. Ong

Sigtran Working Group Meeting Notes
August 7, 2001

Reported by: Ken Morneault

The Sigtran WG met on August 7, 2001 with 99 people attending.

Agenda bashing - Lyndon Ong

*  Noted that v5 and M3UA MIB representatives not available at this meeting, so these topics will not be discussed.  

Status of Working Group Milestones - Lyndon Ong

Slow progress since the last meeting in terms of progression of drafts.  Plan to move Working Group into dormant status ASAP when charter items are completed.

SCTP Status - Lyndon Ong

SCTP extensions and discussions moved to TSV WG.  

There is still an outstanding issue in regards to error check.  Proposed CRC-32 alternative is controversial because it is not backwards compatible.  Will need to move to have another bakeoff after decision made.

A question was raised on the status of the U-SCTP proposal.  Scott (as TSV chair) said it is still open for discussion in the TSV WG.

M2UA status - Lyndon Ong

Completed WG Last Call.  Next version being prepared for IESG Last Call.

M3UA status - Lyndon Ong

Completed WG Last Call.  However, there are still a number of outstanding issue and comments.  Next version will hopefully
go to IESG.

Applicability Statements - Lyndon Ong
  
SCTP AS completed Last Call.  Working to resolve comments from Area Directors.  ADs would like focus of document to be refocused on comparison of SCTP characteristics against TCP/UDP and to make recommendations as to when SCTP should
be used vs. TCP/UDP.  Previous focus of the document was problems that implementers could run into when trying to use SCTP.

SUA Status - John Loughney

WG Last Call started on Monday.  Comments have been received. They will be numbered and sent to the list.  The ASP Management procedures are being re-synced among M3UA/M2UA/SUA.

Summary of current comments:

(see John's slides)

Next steps (SUA)

Resolve issues, update draft and reissue as SUA v08.  Plan to have IESG Last Call before next IETF meeting.

Question:  TUA draft dropped because of lack of interest.  Concern that SUA needs to cover all needs of TCAP.

Answer:  The goal of SUA was to cover all SCCP-users including TCAP. If anyone sees any holes, please note them to the list during the last call.

M2PA Status - Kurt Damm

Quick review of M2PA status.  Note new version of draft:  M2PA v3.
The new draft includes:

*  proving (normal and emergency) procedures for alignment
*  common header format accepted
*  SCTP associations can be started before MTP3 Start primitive
*  version control

Open issues:

*  Does M2PA need its own sequence numbers?  Current proposal is no.

M2PA Interoperability Test

Alcatel plans to host in Plano, Texas.  Proposed dates are October 29-November 2.  Details will be posted to a web site by the end of August.

Would like to go to Last Call.  We will consider if it is ready for Last Call after M3UA and SUA complete Last Call.

Question:  Why was proving added back into the draft?

Answer:  Felt it was need to ensure the quality and performance of the association before passing MTP traffic.  Still open for comment on the list.

DUA Status - Anil Kumar

DPNSS/DASS2 extensions to IUA.  Brief overview of what DPNSS and DASS2 along with architecture of DPNSS/DASS2 backhaul. Brief overview of extensions required to IUA to support 
DPNSS/DASS2.

Two comments from the floor that draft should be 
moved forward into Last Call.  Lyndon wants to wait until other UAs move through Last Call process, then DUA can be submitted.

SCTP MIB status - Maria

Changes:

- added sctpMaxAssoc based on TCP folks' comment
- context change for checksum error
- added port type based on TCP MIB work

Open Issues:

- use of counter32 vs. counter64
-- it was suggested that the editor get help from Bert Wijnen, one of the A-Ds for that area, concerning this issue.

Version 5 will incorporate TCP MIB alignment.  We need to clarify if we should Last Call SCTP MIB before the TCP MIB is finalized.

Bakeoffs - Lyndon Ong

Lyndon noted that bakeoffs are not an official activity of the Working Group, but the WG is a good place to coordinate them.  

Scorecard:

SCTP - 3 bakeoffs
M3UA - 1 bakeoff
IUA  - tentative plan to joint Megaco bakeoff (the week of Sept. 9th
       at UNH)
M2UA - ?
SUA  - Offer, Belgium in Oct/Nov
M2PA - Offer, Plano, Texas in Oct/Nov

Noted from floor that Softswitch plans to offer full end-to-end testing during the 1st week of November in CA.  

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