Re: [Ila] [5gangip] ILA forwaring [Was Re: Problem Statement]
Tom Herbert <tom@quantonium.net> Tue, 01 May 2018 16:38 UTC
Return-Path: <tom@quantonium.net>
X-Original-To: ila@ietfa.amsl.com
Delivered-To: ila@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AB76312DA4F for <ila@ietfa.amsl.com>; Tue, 1 May 2018 09:38:00 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.609
X-Spam-Level:
X-Spam-Status: No, score=-2.609 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_LOW=-0.7, T_DKIMWL_WL_MED=-0.01, URIBL_BLOCKED=0.001] autolearn=unavailable autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=quantonium-net.20150623.gappssmtp.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 rv3CHHv8ifMc for <ila@ietfa.amsl.com>; Tue, 1 May 2018 09:37:59 -0700 (PDT)
Received: from mail-wm0-x22b.google.com (mail-wm0-x22b.google.com [IPv6:2a00:1450:400c:c09::22b]) (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 4A0EB12DA6F for <ila@ietf.org>; Tue, 1 May 2018 09:37:56 -0700 (PDT)
Received: by mail-wm0-x22b.google.com with SMTP id f8so9326896wmc.4 for <ila@ietf.org>; Tue, 01 May 2018 09:37:56 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quantonium-net.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=7El9iGsqhrwiUSl/e2y65NW9lGvu4XQUZaSCdWK/Tbg=; b=t0todQdgVj95cjQ4wxWc0V4Q2afQViVKo5oq736LhcTHAundjGTU0yu68VCKwveCRf jQh+lqRWewKYVbWBrG3hughADr9lWWpBOh2FRZ6ksQWnzUtAPZzVCxBlvTtHV/oEryqb UWSJt+11MhqqtPr03RXIZEBMgcLS+DowJCEnCMMOg4DgTF6OvntJUQOK3fhybr0dLG2T 8V5+lJXj8JTStERirCCJodCge93lkovqw2SIw9hZFos0skUC/MRGQYImTlNvGI4hjaGI k8PylAFaXV8CveJaNQ9FXiSStVmcgBRyKsn6w0YJbfpO7f+exGreXgB72IEKrmxzayCG Shpg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=7El9iGsqhrwiUSl/e2y65NW9lGvu4XQUZaSCdWK/Tbg=; b=sHMi1SQqCXiK7fiDghiSD4me+soxyu4nmnqtyE6WlkUUkWUohnAsCUmM+LivX+lr1p x0MJCVkHGSj3FpPjNCg8ilxfsLnduHTtLvEE54IPEljg+mmaW+SmV+cd9/QLcXvFIqF/ dDq+z5yKyucZ64kQQOyOlSGKKhxkD4QubnYbm9o1sELolseXuINQsF9iGpvjIo9vqvtc UX+g4oIySa88ZAeHB1Yy6vDVKOwuSDqPM5lCSasHNpgEcYGaJdmhPXUbD6cbP9tHwErG M5jqt0ZPAe1RW2UuhkhMRTA3LQw3hDtGRYF43uDGmxpVTxXv5DnZfXmv6FSbigYoVZ6X CgKQ==
X-Gm-Message-State: ALQs6tD9vneNQcSbGt+DSnWaqVFaZmlDciO4pLD2dq67TL/m5v0M3UCW QWGH0HaVdWfoEujfap1umcFXKfE/5HHacWCZ9c1efQ==
X-Google-Smtp-Source: AB8JxZoLiSAWmLAxJKZrY3Wstc8Vd6Ya5kNDQkpXNG4LmmigzOcpqsNLB4sU+zDQaN9Rw5/t3EtCLYu0vfZYToR6e48=
X-Received: by 10.28.124.10 with SMTP id x10mr9375279wmc.59.1525192674615; Tue, 01 May 2018 09:37:54 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.223.128.227 with HTTP; Tue, 1 May 2018 09:37:54 -0700 (PDT)
In-Reply-To: <253963a3-9e0b-2cb9-e216-745c6b99766c@joelhalpern.com>
References: <CALx6S37_oce-S0pEUgB8CpkWemcHhrb4HoDXUfPHZMGiokCqcA@mail.gmail.com> <253963a3-9e0b-2cb9-e216-745c6b99766c@joelhalpern.com>
From: Tom Herbert <tom@quantonium.net>
Date: Tue, 01 May 2018 09:37:54 -0700
Message-ID: <CAPDqMeqsdG5FKtMaq9bjcJYDMw69Ow=OkeqMdba8aqRh9ayPrQ@mail.gmail.com>
To: "Joel M. Halpern" <jmh@joelhalpern.com>
Cc: Tom Herbert <tom@herbertland.com>, Christian Huitema <huitema@huitema.net>, ila@ietf.org, 5GANGIP <5gangip@ietf.org>
Content-Type: text/plain; charset="UTF-8"
Archived-At: <https://mailarchive.ietf.org/arch/msg/ila/eezxhV0IYwBPhgy9T4PFgQgKGGE>
Subject: Re: [Ila] [5gangip] ILA forwaring [Was Re: Problem Statement]
X-BeenThere: ila@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Identifier Locator Addressing <ila.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ila>, <mailto:ila-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ila/>
List-Post: <mailto:ila@ietf.org>
List-Help: <mailto:ila-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ila>, <mailto:ila-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 01 May 2018 16:38:01 -0000
On Tue, May 1, 2018 at 9:10 AM, Joel M. Halpern <jmh@joelhalpern.com> wrote: > Three reactions, all personal opinion (in case someone thinks my having > helped chair the BoF is in any way relevant; it isn't): > > 1) If ILA-Ns do not have caches, the ILA-Rs will become hot-spots in the > network. Yes, you have provision for multiple of them sharing load. > However, if that sharing gets to be a significant percentage of teh routers > in the network, then there is no point in having bothered with ILA, you are > just routing on the SIR. > Joel, If you provision a network (or any system really) based on an assumption that caches will always attain some hit rate this is a fundamental mistake. One of the goals of a DOS attack would be to drive the hit rate to zero in which case someone will be in a world of hurt. Caches and DOS are a hard mix to contend with in nearly any context, that's why it's much better to view caches as an optimization rather than a requirement. They can be used to alleviate load, but that cannot be relied upon. I would also point out that caches only make sense as internal devices for intra domain communications. This does not make sense for edge routers that would need to create a working set cache for any aribtrary load of traffic from the Internet. > 2) As far as I can tell, when some ILA-N have caches, the ILA-R have no way > of knowing whether the ILA-N have caches or not. I can understand what > happens if all ILA-N in a network have the same cache state (either they all > have caches or they all do not have caches). But I do not know what > behavior you expect of an ILA-R if the ILA-N are not uniform. Given the > hot-spot issue above, I think you need to really explain why ILA-N would not > ahve caches. > ILA-Rs and ILA-Ns communicate via ILAMP protocol. That can include capabilities description. > 3 - Minor) Your usage of "sharding" seems odd. You are simply dividing the > domain into address blocks, and distributing responsibility for those blocks > separately. In other contexts, sharding seems to be used more generally for > having subcollections of the data which can be moved around. > Sharding is a database term that describes partitioning of the database into smaller chunks for manageablibilty. That is what is happening here (literally in the implementation since we are use a database backend). Tom
- [Ila] ILA forwaring [Was Re: [5gangip] Problem St… Tom Herbert
- Re: [Ila] ILA forwaring [Was Re: [5gangip] Proble… Joel M. Halpern
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] ILA forwaring [Was Re: [5gangip] Proble… Dino Farinacci
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Joel M. Halpern
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Behcet Sarikaya
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Joel M. Halpern
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Dino Farinacci
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Dino Farinacci
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Dino Farinacci
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… FIGURELLE, TERRY F
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Alberto Rodriguez-Natal
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Alberto Rodriguez-Natal
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Joel M. Halpern
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Dirk.von-Hugo
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… FIGURELLE, TERRY F
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Joel M. Halpern
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… FIGURELLE, TERRY F
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Lorenzo Colitti
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… FIGURELLE, TERRY F
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… FIGURELLE, TERRY F
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Lorenzo Colitti
- Re: [Ila] [5gangip] ILA forwaring [Was Re: Proble… Tom Herbert