Re: [LOOPS] BOF co-chairs thinking on LOOPS next steps
Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com> Wed, 24 July 2019 21:40 UTC
Return-Path: <spencerdawkins.ietf@gmail.com>
X-Original-To: loops@ietfa.amsl.com
Delivered-To: loops@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D33CE1203B8 for <loops@ietfa.amsl.com>; Wed, 24 Jul 2019 14:40:32 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.997
X-Spam-Level:
X-Spam-Status: No, score=-1.997 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8XiaFT9h6OfE for <loops@ietfa.amsl.com>; Wed, 24 Jul 2019 14:40:29 -0700 (PDT)
Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 28539120159 for <loops@ietf.org>; Wed, 24 Jul 2019 14:40:29 -0700 (PDT)
Received: by mail-lf1-x130.google.com with SMTP id r15so15976286lfm.11 for <loops@ietf.org>; Wed, 24 Jul 2019 14:40:29 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Pdmqd7B854jWb0B4V7/oOrJ0a/yRFIY3ilcFtcqoJUQ=; b=Y0m6InB2WBs5Jp7aRWfz65N+GNXakxLZiEV2IU7l3CN3qSgy08k5P0S8S4N2O9vPrQ 3Va6CiHaKD5CE/m7Yu13acVUCbAsWFeDhdFdPARPsiKRCAVFBoxZX9IioTYz2ZHfWgVM Hk3KQpLDegH9dkAP1cyptCBDkJRXmk20rpCXMmZBWJ2JCS1yYJcDg8WGGookU20DWBZ3 cPVLe/zAc1gDj6HnpDUyIObtLiZX0A+GfJspXyDLYFmq4mNZg63/H0/PjltQTQ5BaIq5 lF3bBCQA2Yptkt277LgrQm9191MtIqbA/i/afjY4Ogf4A91zy2CbIqQZlf7iV4fRcoNf WlaQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Pdmqd7B854jWb0B4V7/oOrJ0a/yRFIY3ilcFtcqoJUQ=; b=kf9twwdn/xJeyiiYnZsZgzvGu8634wjc0sXL04WWA+scVAfnM6hpvdUDHLqXK1/daV cNLg4Gf2f1EA51JmIFPVbZOk0BCGFV2ztCZMrZ5UGrO2K/U1lnFz8uR/tEXrYg71onSX 1Viq7XtfubfhNQv9ebF59UA+qiCvJbl/WFC6mStLAsdvsr6IK45BpI81vDFqG4BCW/tI WwnDA/w7at/cqmKnX0goBCMYzr5cFBGjiy90KxJOqorbpnl3bm5G8a8+CNb7f1lSP9eO lkDR711FOpvYrrkcCSBBWp2/1rzOywbbrnXj9A/E7wHwesDpbLnhRzeI4HcJTWtstvah ckvg==
X-Gm-Message-State: APjAAAVgtPK9ZBXZ9/L8zuUbicgJK+NHoEqlxmUd0AInx2n+niB9/CJF HclTA9RvQe5dJvpxn+LG2HTSBRuQqdg9XhqZb0w=
X-Google-Smtp-Source: APXvYqyJ/0h7IS0qx518wcTPDL0mrO8FpFJk05iqBgpFmr77/yuJU1mfsgRdyOo3mVeFCDDFFNEmES7BMKrYc9WzRIY=
X-Received: by 2002:a19:f806:: with SMTP id a6mr26094686lff.102.1564004427286; Wed, 24 Jul 2019 14:40:27 -0700 (PDT)
MIME-Version: 1.0
References: <CAKKJt-cwTUkwcN5vCjFkQ7uuZPxm3JSMfajb=WPo_=E+CBxmRg@mail.gmail.com>
In-Reply-To: <CAKKJt-cwTUkwcN5vCjFkQ7uuZPxm3JSMfajb=WPo_=E+CBxmRg@mail.gmail.com>
From: Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>
Date: Wed, 24 Jul 2019 17:40:03 -0400
Message-ID: <CAKKJt-eRGJe+9PtEC7xgFz+HA0zsr_sR0NUgKRmJ-P5Q3XBg-A@mail.gmail.com>
To: Magnus Westerlund <magnus.westerlund@ericsson.com>
Cc: Mirja Kuehlewind <ietf@kuehlewind.net>, Suresh Krishnan <suresh@kaloom.com>, loops@ietf.org
Content-Type: multipart/alternative; boundary="00000000000050cee4058e742847"
Archived-At: <https://mailarchive.ietf.org/arch/msg/loops/l9DQtWJxY056GnyFla121DmpwI0>
Subject: Re: [LOOPS] BOF co-chairs thinking on LOOPS next steps
X-BeenThere: loops@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Local Optimizations on Path Segments <loops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/loops>, <mailto:loops-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/loops/>
List-Post: <mailto:loops@ietf.org>
List-Help: <mailto:loops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/loops>, <mailto:loops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 24 Jul 2019 21:40:33 -0000
Dear All, I met with the ADs to talk about the next steps they would like to see for LOOPS. Here's what I know. - There are people working in this space now - The community thinks standardization would help - What's necessary is to identify exactly what work is required, so that the ADs can make decisions about where that work should take place. - We got some suggestions about technologies that could be used in LOOPS at the BOF. That will be a great starting point. - Here's a hint from the ADs - if the proponents can come up with a clear charter, limited in scope, that will make their lives easier, and make it easier for them to charter this work :D I told Magnus I was willing to work with the LOOPS community as you move forward toward a charter. Make good choices! Spencer On Wed, Jul 24, 2019 at 11:24 AM Spencer Dawkins at IETF < spencerdawkins.ietf@gmail.com> wrote: > Hi, Magnus, > > Ole and I wanted to let you know what things looked like to us as > co-chairs. > > We are copying the mailing list, to provide transparency for the LOOPS > community. Wes Hardaker suggested that we copy the IAB because at least two > IAB folk were covering the BOF, and would be sending write-ups to the IAB > and IESG afterwards. > > (Dear LOOPists - you may wish to remove the IAB from any follow-up e-mail > on the mailing list. Interested IAB members are subscribed to LOOPS, or > will be very soon. Uninterested IAB members don't need more e-mail from us!) > > First, I'd like to thank you (and Suresh) for bringing in an INT co-chair. > That was extremely helpful. > > Draft minutes have been posted at > https://datatracker.ietf.org/doc/minutes-105-loops/. But, to summarize > ... > > We asked these questions at the beginning of the BOF: > > Chairs: What sort of people were in the room? > > - 1/3 transport people > - 1/3 encaps people > - 1/10 apps people > - 2 ops people > - 5 measurements people > - 1.5 security people > - 10-12 people on products/systems they do some form of enhancement. > - Who has read the problem draft? 1/3 room > > We think that holding a BOF was a good decision, based on the number of > people (even in the room) working on products and systems in this space. > > We think that holding a non-working group-forming BOF was a good decision, > because many of the people who have been working in this space haven't been > talking to each other (which makes products that don't interoperate or > provide the same services in the same way - same as our previous experience > with NATs). Providing a place for them to talk was very helpful. > > Ole was impressed at the low number of tourists in the room. > > The key points from the BOF proponents were > > - First, do no harm - measure what you're doing, and adjust what > you're doing based on feedback, including turning your optimizations off > entirely. > - Do local repair between LOOPS endpoints, not involving hosts (at > least, not now) > - Multipath; Measurement; MTU-handling; Encapsulation/Tunnels were out > of scope (at least for now) > - Use FEC for local repair > - Do The Right Thing in tuning FEC usage based on feedback > - In some cases, use limited retransmission for local repair, probably > if FEC is not sufficient > > The key points from discussion were > > - Marie-Jose Montpetit, co-chair of Network Coding Research Group, > said that they have much research that is applicable for FEC. Marie-Jose > has followed up on the mailing list after the BOF. > - It's not clear how much vendors in this space want a standardized > solution, but it's more likely that operators will want that > - Multiple people have concerns about masking signals about actual > losses and adverse interactions between multiple levels of optimizations. > These are things to watch out for in future work > > Hums at the end of the session were > > - There are multiple problems involved here, so a key next step will > be teasing those problems apart and identifying what the IETF (and IRTF) > has already done, that is applicable, and could be reused with no changes, > or extended/modified as part of LOOPS, and what problems still remain > unaddressed and clearly require protocol work in the IETF > - Colin Perkins said there were big parts of the LOOPS problem set > that are engineering now (Spencer and Ole happen to agree) > - Andrew McGregor said that LOOPS would benefit from additional > research (Spencer and Ole happen to agree, but think there is enough > engineering work that waiting for more research to charter work isn't > necessary) > - Magnus asked if standardization in this space would be useful or > beneficial. Many hums YES, some hums NO. > > We will send our recommendations on how to follow up to the LOOPS mailing > list separately, so that the discussion happens in the right place. If IESG > and IAB people have opinions about that, subscribing would be good :-) > > We can imagine that work in this space would result in > standards-conformant products, but we can also imagine that work in this > space would result in significantly improved proprietary products, or > standards-conformant products with significant extensions. A lot depends on > the people doing the work. > > Thanks for the opportunity to serve the community in this way. > > Spencer and Ole, as co-chairs for the BOF >
- [LOOPS] BOF co-chairs thinking on LOOPS next steps Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Carsten Bormann
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Carsten Bormann
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Michael Welzl
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Liyizhou
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Mirja Kuehlewind
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Carsten Bormann
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Emmanuel Lochin
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Wesley Eddy
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Carsten Bormann
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Wesley Eddy
- Re: [LOOPS] [nwcrg] BOF co-chairs thinking on LOO… Stuart William Card
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Michael Welzl
- Re: [LOOPS] [nwcrg] BOF co-chairs thinking on LOO… Colin Perkins
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Wesley Eddy
- Re: [LOOPS] [nwcrg] BOF co-chairs thinking on LOO… Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Carsten Bormann
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … mohamed.boucadair
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … mohamed.boucadair
- Re: [LOOPS] [nwcrg] BOF co-chairs thinking on LOO… Colin Perkins
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Carsten Bormann
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Michael Welzl
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Carsten Bormann
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Carsten Bormann
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Carsten Bormann
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Colin Perkins
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Spencer Dawkins at IETF
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Colin Perkins
- Re: [LOOPS] BOF co-chairs thinking on LOOPS next … Marie-Jose Montpetit