Re: [tsvwg] Diffserv classes (rfc4594bis): Check on Atlanta "hum"
<Ruediger.Geib@telekom.de> Mon, 26 November 2012 08:46 UTC
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From: Ruediger.Geib@telekom.de
To: david.black@emc.com
Date: Mon, 26 Nov 2012 09:46:53 +0100
Thread-Topic: Diffserv classes (rfc4594bis): Check on Atlanta "hum"
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Subject: Re: [tsvwg] Diffserv classes (rfc4594bis): Check on Atlanta "hum"
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David, again thanks for a well formulated proposal. After a brief talk with my audio/video QoE experts I agree to differing telecoferencing (or whatever we call it) from streaming in DiffServ standards. I see a need to clarify aggregation of DiffServ classes, if a revised RFC5127 or a revised RFC4594 are put on standards track. I'm having issues with RFC5127. And a side one: terminology may be an issue - we all use "classes" in our exchanges and Brian correctly pointed out that it is not as well defined as major parts of the DiffServ terminology (which, I think, we however hardly use). Regards, Rüdiger -----Original Message----- From: tsvwg-bounces@ietf.org [mailto:tsvwg-bounces@ietf.org] On Behalf Of Black, David Sent: Saturday, November 24, 2012 11:35 PM To: tsvwg@ietf.org Subject: [tsvwg] Diffserv classes (rfc4594bis): Check on Atlanta "hum" Hello - this is your new tsvwg co-chair, with <co-chair hat on>. The Atlanta tsvwg minutes are at: http://www.ietf.org/proceedings/85/minutes/minutes-85-tsvwg Many thanks to Ken and Mirja for being the note-takers. I have two action items from the Thursday diffserv-oriented meeting - this message is about the first, the possible update to the Diffserv Classes RFC (RFC 4594). Excerpt from the minutes (slightly edited/corrected): --------------- - (David Black) there is a suggestion that multi-media conferencing was not properly supported when Diffserv Classes were first defined. So, what does the room think about this? Audience "hum" thinks James Polk is correct and that a new more granular class is needed. Particularly, RFCs 4594 and 5127 need some work. Black states that we need to put this on the list and discuss how many more things we need to fix. --------------- Restating - the sense of the room in Atlanta was that interactive media (e.g., multi-media conferencing) needs to be broken out of the existing diffserv media classes into at least one new class. If anyone disagrees with that sense of the room in Atlanta, please speak up now (please review the appropriate portion of the Atlanta minutes first). Caveat: this topic and email are entirely about Diffserv Classes, i.e., revising RFC 4594. If RFC 4594 is revised, RFC 5127 on diffserv class aggregation will need a corresponding update to fit the new classes into its aggregates. This email is *not* about the discussion of diffserv usage for interconnection (e.g., the ITU-T SG12 liaison). That interconnection topic may or may not involve a revision to RFC 5127 (e.g., it could be done in an entirely new document) and will be covered in a separate email thread; please wait for it. If the sense of the room in Atlanta is confirmed, the next steps on Diffserv Classes are that I will work with James to come up with a list of all the things that he's proposing to change in draft-polk-tsvwg-rfc4594-update and ask the list whether each one of them needs attention (single subject/question emails). In particular, this is *not* a call for whether tsvwg should adopt draft-polk-tsvwg-rfc4594-update - the initial steps are to figure out the scope of work that should be done. Thanks, --David ---------------------------------------------------- David L. Black, Distinguished Engineer EMC Corporation, 176 South St., Hopkinton, MA 01748 +1 (508) 293-7953 FAX: +1 (508) 293-7786 david.black@emc.com Mobile: +1 (978) 394-7754 ----------------------------------------------------
- [tsvwg] Diffserv classes (rfc4594bis): Check on A… Black, David
- Re: [tsvwg] Diffserv classes (rfc4594bis): Check … Ruediger.Geib
- Re: [tsvwg] Diffserv classes (rfc4594bis): Check … Black, David