Re: [Dart] I-D Action: draft-ietf-dart-dscp-rtp-00.txt

"Black, David" <david.black@emc.com> Tue, 05 August 2014 23:34 UTC

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From: "Black, David" <david.black@emc.com>
To: Ben Campbell <ben@nostrum.com>
Date: Tue, 5 Aug 2014 19:34:27 -0400
Thread-Topic: [Dart] I-D Action: draft-ietf-dart-dscp-rtp-00.txt
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Subject: Re: [Dart] I-D Action: draft-ietf-dart-dscp-rtp-00.txt
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Ben,

Thank you for reviewing this draft.

> I concur with the editor's note to reorganize sections.

Thank you - anyone else care to weigh in?

> -- Section 4, Bullets 3 and 4:
> 
> Should STP in bullet 4 be SCTP?

Yes, I'd plead gasoline fumes ;-), but I actually missed this in rapid-fire
editing to try to pick up everything from the productive Toronto dart meeting.

> If yes, then doesn't this bullet more tightly
> constrain things than bullet 3, to the point of making bullet 3 redundant? Or
> am I misreading something?

I think that's correct - bullets 3 and 4 should be combined.

Thanks,
--David

> -----Original Message-----
> From: Ben Campbell [mailto:ben@nostrum.com]
> Sent: Tuesday, August 05, 2014 3:41 PM
> To: Black, David
> Cc: dart@ietf.org
> Subject: Re: [Dart] I-D Action: draft-ietf-dart-dscp-rtp-00.txt
> 
> (as individual)
> 
> -- General
> 
> I concur with the editor's note to reorganize sections. On my first reading, I
> was going to comment that I thought we needed more focus on what is really
> likely to happen, e.g. with WebRTC. On a second reading, I think that's mostly
> okay, but the consolidation of the RTP sections might make it more clear.
> 
> -- Section 4, Bullets 3 and 4:
> 
> Should STP in bullet 4 be SCTP? If yes, then doesn't this bullet more tightly
> constrain things than bullet 3, to the point of making bullet 3 redundant? Or
> am I misreading something?
> 
> Thanks!
> 
> Ben.
> 
> On Jul 31, 2014, at 3:50 PM, Black, David <david.black@emc.com> wrote:
> 
> > As promised, here's the -00 dart WG draft.  I think I incorporated almost
> > everything that was discussed in the meeting, but I've surely missed a
> > few things - please comment (on list, or send me editorial changes
> directly).
> >
> > I want to call attention to this Editor's Note on draft organization:
> >
> >   [Editor's Note: Current section structure skips around topics
> >   somewhat.  The editor suggests restructuring to put real-time/RTP
> >   material first (new section 2, consisting of current sections 2, 2.1
> >   and 3), then DiffServ Background (new section 3, consisting of
> >   current sections 2.2, 2.3, 2.6 and 2.7, followed by discussion of
> >   interactions (new section 4, consisting of current sections 2.4, 2.5
> >   and 5) and guidelines (current section 4, renumbered to new section
> >   5).]
> >
> > If this change is made, I will submit a version that only contains the
> > text rearrangement before making any other changes.  The "game plan" that
> > I've discussed w/Ben (WG chair) is to revise the draft over about the next
> > week with the resulting version going to WG Last Call, so reading this
> > draft sooner rather than later might be a good idea.
> >
> > Thanks,
> > --David
> >
> >> -----Original Message-----
> >> From: I-D-Announce [mailto:i-d-announce-bounces@ietf.org] On Behalf Of
> >> internet-drafts@ietf.org
> >> Sent: Thursday, July 31, 2014 3:08 PM
> >> To: i-d-announce@ietf.org
> >> Cc: dart@ietf.org
> >> Subject: I-D Action: draft-ietf-dart-dscp-rtp-00.txt
> >>
> >>
> >> A New Internet-Draft is available from the on-line Internet-Drafts
> >> directories.
> >> This draft is a work item of the DiffServ Applied to Real-time Transports
> >> Working Group of the IETF.
> >>
> >>        Title           : Differentiated Services (DiffServ) and Real-time
> >> Communication
> >>        Authors         : David Black
> >>                          Paul Jones
> >> 	Filename        : draft-ietf-dart-dscp-rtp-00.txt
> >> 	Pages           : 23
> >> 	Date            : 2014-07-31
> >>
> >> Abstract:
> >>   This document describes the interaction between Differentiated
> >>   Services (DiffServ) network quality of service (QoS) functionality
> >>   and real-time network communication, including communication based on
> >>   the Real-time Transport Protocol (RTP).  DiffServ is based on network
> >>   nodes applying different forwarding treatments to packets whose IP
> >>   headers are marked with different DiffServ Code Points (DSCPs).  As a
> >>   result, use of different DSCPs within a single traffic stream may
> >>   cause transport protocol interactions (e.g., reordering).  In
> >>   addition, DSCP markings may be changed or removed between the traffic
> >>   source and destination.  This document covers the implications of
> >>   these DiffServ aspects for real-time network communication, including
> >>   RTCWEB.
> >>
> >>
> >> The IETF datatracker status page for this draft is:
> >> https://datatracker.ietf.org/doc/draft-ietf-dart-dscp-rtp/
> >>
> >> There's also a htmlized version available at:
> >> http://tools.ietf.org/html/draft-ietf-dart-dscp-rtp-00
> >>
> >>
> >> Please note that it may take a couple of minutes from the time of
> submission
> >> until the htmlized version and diff are available at tools.ietf.org.
> >>
> >> Internet-Drafts are also available by anonymous FTP at:
> >> ftp://ftp.ietf.org/internet-drafts/
> >>
> >> _______________________________________________
> >> I-D-Announce mailing list
> >> I-D-Announce@ietf.org
> >> https://www.ietf.org/mailman/listinfo/i-d-announce
> >> Internet-Draft directories: http://www.ietf.org/shadow.html
> >> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
> >
> > _______________________________________________
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