Re: [manet] I-D Action: draft-ietf-manet-dlep-da-credit-extension-04.txt

Rick Taylor <rick@tropicalstormsoftware.com> Tue, 06 March 2018 13:20 UTC

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From: Rick Taylor <rick@tropicalstormsoftware.com>
To: "ratliffstan@gmail.com" <ratliffstan@gmail.com>
CC: "manet@ietf.org" <manet@ietf.org>, "lberger@labn.net" <lberger@labn.net>
Thread-Topic: [manet] I-D Action: draft-ietf-manet-dlep-da-credit-extension-04.txt
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Date: Tue, 6 Mar 2018 13:19:48 +0000
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Subject: Re: [manet] I-D Action: draft-ietf-manet-dlep-da-credit-extension-04.txt
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Hi All,

I was unclear.  I meant "Chairs, would you like to reserve a slot in
the agenda so Lou and I can have a discussion at the mic about this
topic, or would you rather we kept this to the list."

If you do not have space in the agenda, I am happy to find a quiet spot
and let everyone know so we can have a DLEP-DiffServ BoF.

Cheers,

Rick

On Sat, 2018-03-03 at 12:34 -0500, Stan Ratliff wrote:
> Rick/Lou,
> 
> I’d prefer doing it at the mic in the joint session with CCAMP. Not
> sure what the schedule looks like there.
> 
> I’m going to be in London; if this is an offline session, I’d like to
> participate. 
> 
> Regards,
> Stan
> 
> Sent from my iPhone
> 
> > On Mar 3, 2018, at 5:45 AM, Rick Taylor <rick@tropicalstormsoftware
> > .com> wrote:
> > 
> > Hi Lou,
> > 
> > I'm starting to receive quite a few enquiries from industry for
> > DLEP support for modem systems where different traffic classes flow
> > via different paths to destinations, so called 'hub-assist'
> > modems.  For these types of modem (an others) the ability to
> > describe the metrics per-flow to a destination is required.
> > 
> > As I've mentioned before, I think there is benefit in splitting out
> > the concept of Traffic Class Ids (as specified in this draft) into
> > its own draft, including both the DSCP and Ethernet TOS examples,
> > and then referring to that draft from this one, and also from
> > others including 'metrics per TCID'. 
> > 
> > I'm in London, and do think this is a useful topic of conversation
> > for the meeting/future work.  
> > 
> > @chairs: Would you like Lou or I to grab 10 mins at the mic to talk
> > about this, or try to work it out offline?
> > 
> > Cheers,
> > 
> > Rick
> > 
> > > -----Original Message-----
> > > From: manet [mailto:manet-bounces@ietf.org] On Behalf Of Lou
> > > Berger
> > > Sent: 02 March 2018 22:47
> > > To: manet@ietf.org
> > > Subject: Re: [manet] I-D Action: draft-ietf-manet-dlep-da-credit-
> > > extension-
> > > 04.txt
> > > 
> > > Hi,
> > > 
> > > There are a few items outstanding on the credit draft:
> > > 
> > > I received an offline comment that I think should be noted in the
> > > draft.  The
> > > comment was that it might not be obvious that since queues/credit
> > > windows
> > > can be shared among (disjoint) sets of endpoints, that sending to
> > > one
> > > destination in a set reduces the available capacity to other
> > > destinations.  I'll
> > > propose some text on this shortly.
> > > 
> > > There are also two questions that are still open:
> > > 
> > > (A) does the WG want to keep the document as is or break apart
> > > the current
> > > document into two documents?
> > > 
> > > - the first being the credit window and generic traffic
> > > classification definition
> > > and the second being the DA/DSCP extension and traffic
> > > classification sub-DI
> > > 
> > > I can't speak for my co-authors, but I'm okay proceeding either
> > > way, but now
> > > is the time to decide.
> > > 
> > > (B) finally, does the WG want to take the notional Ethernet/PCP
> > > based traffic
> > > classification which was added as an appendix, see [1], to sanity
> > > check the
> > > current functional decomposition and make it a full blown
> > > Ethernet/PCP
> > > extension
> > > 
> > > my personal preference is to do this, it's not much effort and
> > > seems
> > > worthwhile.
> > > 
> > > any thoughts and/or comments would be appreciated.
> > > 
> > > I also look forward to discussing this in London (in the joint
> > > meeting with
> > > ccamp).
> > > 
> > > Lou
> > > 
> > > [1]
> > > https://tools.ietf.org/html/draft-ietf-manet-dlep-da-credit-exten
> > > sion-
> > > 04#appendix-B
> > > 
> > > 
> > > > On 3/1/2018 6:03 PM, Lou Berger wrote:
> > > > Hi,
> > > > 
> > > > This version completes the updates discussed at the last IETF.
> > > > The
> > > > notable changes are:
> > > > 
> > > > - Separate credit control from traffic classification
> > > > 
> > > > - Ensure traffic classification is extendable to other flow
> > > > identification methods
> > > > 
> > > >      - This included definition of a Notional Ethernet Credit
> > > > Window
> > > > Traffic Classification (in an appendix) as a sanity check on
> > > > separation
> > > > of mechanisms.  This can be removed at some point or moved to
> > > > it's own
> > > > document/extension.
> > > > 
> > > > - Add a management considerations section
> > > > 
> > > > - other minor corrections/fixes.
> > > > 
> > > > - One note, Traffic Class. Identifier (TID) was not changed as
> > > > discussed
> > > > at IETF 100
> > > > 
> > > > Lou
> > > > 
> > > > > On 3/1/2018 4:45 PM, internet-drafts@ietf.org wrote:
> > > > > A New Internet-Draft is available from the on-line Internet-
> > > > > Drafts
> > > 
> > > directories.
> > > > > This draft is a work item of the Mobile Ad-hoc Networks WG of
> > > > > the IETF.
> > > > > 
> > > > >          Title           : DLEP DiffServ Aware Credit Window
> > > > > Extension
> > > > >          Authors         : Bow-Nan Cheng
> > > > >                            David Wiggins
> > > > >                            Lou Berger
> > > > >    Filename        : draft-ietf-manet-dlep-da-credit-
> > > > > extension-04.txt
> > > > >    Pages           : 26
> > > > >    Date            : 2018-03-01
> > > > > 
> > > > > Abstract:
> > > > >     This document defines an extension to the DLEP protocol
> > > > > that enables
> > > > >     a DiffServ aware credit-window scheme for destination-
> > > > > specific and
> > > > >     shared flow control.  The extension is logically composed
> > > > > of two
> > > > >     mechanisms.  The first provides credit window control,
> > > > > the second
> > > > >     identifies how flows are identified and mapped to a
> > > > > credit window.
> > > > > 
> > > > > 
> > > > > The IETF datatracker status page for this draft is:
> > > > > https://datatracker.ietf.org/doc/draft-ietf-manet-dlep-da-cre
> > > > > dit-
> > > 
> > > extension/
> > > > > 
> > > > > There are also htmlized versions available at:
> > > > > https://tools.ietf.org/html/draft-ietf-manet-dlep-da-credit-e
> > > > > xtension-04
> > > > > https://datatracker.ietf.org/doc/html/draft-ietf-manet-dlep-d
> > > > > a-credit-
> > > 
> > > extension-04
> > > > > 
> > > > > A diff from the previous version is available at:
> > > > > https://www.ietf.org/rfcdiff?url2=draft-ietf-manet-dlep-da-cr
> > > > > edit-
> > > 
> > > extension-04
> > > > > 
> > > > > 
> > > > > 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/
> > > > > 
> > > > > _______________________________________________
> > > > > manet mailing list
> > > > > manet@ietf.org
> > > > > https://www.ietf.org/mailman/listinfo/manet
> > > > > 
> > > > 
> > > > _______________________________________________
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> > > 
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> > 
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