Re: [re-ECN] Pls respond: Do we have a Congestion Exposure community?

["Don Bowman" <[e-mail]>]

> >Date: Wed, 02 Sep 2009 17:33:36 +0100
> >To: [e-mail]
> >From: Bob Briscoe <[e-mail]>
> >Subject: Pls respond: Do we have a Congestion Exposure community?
> >
> >Folks,
> >
> >I'd like to try to arrange a Congestion Exposure (re-ECN) BoF in Nov
> >at the Hiroshima IETF. If so, we have to notify the area directors v
> >soon - by 24:00 UTC Mon 7 Sep 09. #1 gating function for Area
> >Directors: activity on an ietf list.
> >
> >Therefore, pls respond preferably *on this list* if you're
> >interested in being involved, no matter how insignificantly, e.g.
> >
> >- you want congestion visibility for other stuff you're doing
> >   (but don't intend to work on it itself)
> >- reviewing docs,
> >- alternative way to achieve congestion exposure
> >- participate in mailing list discussion,
> >- co-authoring docs
> >- design ways to do incremental deployment
> >- using code for other stuff you're doing
> >- thinking up new uses for the protocol
> >- breaking it
> >- analysing benefits/costs
> >- implement protocol
> >- implement a demo
> >- running or participating in trials
> >- standing on the sidelines booing or clapping
> >- whatever
> >
> >Perceived problem:
> >Most people want to work on something finite like a new cool
> >non-TCP-friendly congestion control. Less people want to go into an
> >pseudo-infinite loop fixing IP to allow other cool stuff to happen.
> >If you want something like re-ECN to be there, but don't have the
> >bandwidth to work on it, that's cool too - please say this - it's
> >still palpable support. And you will be likely to have review
> >comments related to how you want to use it.

I would be very interested. I am with Sandvine, one of the larger
vendors of network policy control, including congestion and traffic
management.

I could share some of our successes and frustrations in this space, and
the things that would help as part of the standard. re-ECN is something
that i would like to use as part of our fairshare traffic management
product.

One of the significant challenges we have is detecting congestion on a
per link basis, where congestion is defined as traffic that must get
through that is kicked around, rather than simple as free capacity.

One of the things i can bring is specific measurements from consumer
wireless and broadband networks, and an explanation of how those
networks function. These are the highest-scale shared pipe systems out
there today.

--don