Re: [v6ops] Operational Headache: Upstream liveness

Fred Baker <fredbaker.ietf@gmail.com> Fri, 29 March 2019 09:22 UTC

Return-Path: <fredbaker.ietf@gmail.com>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 008CF12023E for <v6ops@ietfa.amsl.com>; Fri, 29 Mar 2019 02:22:38 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.999
X-Spam-Level:
X-Spam-Status: No, score=-1.999 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, RCVD_IN_DNSWL_NONE=-0.0001, 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 EUItn1x5ihrL for <v6ops@ietfa.amsl.com>; Fri, 29 Mar 2019 02:22:35 -0700 (PDT)
Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) (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 3446A12024C for <v6ops@ietf.org>; Fri, 29 Mar 2019 02:22:35 -0700 (PDT)
Received: by mail-wr1-x434.google.com with SMTP id y13so1683752wrd.3 for <v6ops@ietf.org>; Fri, 29 Mar 2019 02:22:35 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:message-id:mime-version:subject:date:in-reply-to:cc:to :references; bh=Ybd9JXS93ocY70YuUSaXLpS06WpjbSVah4u0bqxuaJI=; b=LgcadMCk8l2SnQOIcMLjwcPdy9gI99kBmNkDd2e6AX9YWLQByvKEIYD4C2yg79OiNm y00ux0XHlursGu73G/3tz51/suh0N/TcDT7d6yhAwZ32wklld4JZ+6fvKyGXFScAxdZf +uGGdbZ7K27fsAgv7OYh3LIC3LQJ9R6ZR0JmMudJn/dyibZFMtc4WbabA/6i/Xn4xRzg yYZZhzExcDPK6vuwgQDBXGu0edU2QPrVPYnMSJVFaGtk3SYCd9QcESadR7/WMSiR/stg gl6/DTWqV5wlXX9U9298I8eGstzXALhC8LZzm1opsHIuDvIy6x/BvOGBliut8hccDbpC hQaQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:message-id:mime-version:subject:date :in-reply-to:cc:to:references; bh=Ybd9JXS93ocY70YuUSaXLpS06WpjbSVah4u0bqxuaJI=; b=HaDICWurlzKeG9rt98kAO6OwAOAlX7DEbof3uxlOM/6P3TqdGQUj78jQPr5Ianiy1X w+mQ6tj8BEmdm+UPOfK1jg+itgvFPQM9gP5ox/rVa7xQE0Mf5Rvqqy1eZO4PuiwJb20L X3GJOqUFjFRuh1UHUYmzNyB7dXW5fumb81XKZYHr9SbuV6RhPrgTzhTb6VPJbQNjesxB azBfNRy4C8KtdgpJZtYNoe/kFAAPn38hBKg4uGwzhPrtOBo15KOKurbgWs1iyNVWdsUq C3egp8PUlc79gZpD62huufUVWdNywpL+y7RQC5zi9Ncq30OLfTvn+pN9+iVv9RYyinWW MWCw==
X-Gm-Message-State: APjAAAXzwapONgRUdQLWGUdzxp+4tGWTEnMIlsFLCwdnvpKefhhc967I 9g8gSJTlNsP7F6857V6z2w4=
X-Google-Smtp-Source: APXvYqxJigMyWhbJxLpDiCiayeExOcyOoG4cfxySK7lnc3WwImjnt2s9Gun4nZ6KbbQzN7L0RfodrQ==
X-Received: by 2002:adf:ec0a:: with SMTP id x10mr13784226wrn.193.1553851353720; Fri, 29 Mar 2019 02:22:33 -0700 (PDT)
Received: from ?IPv6:2001:67c:1232:144:3427:feaa:c66d:4a69? ([2001:67c:1232:144:3427:feaa:c66d:4a69]) by smtp.gmail.com with ESMTPSA id t14sm1540057wmi.16.2019.03.29.02.22.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 29 Mar 2019 02:22:32 -0700 (PDT)
From: Fred Baker <fredbaker.ietf@gmail.com>
Message-Id: <535CB70C-1121-481E-8838-2AF031208C9B@gmail.com>
Content-Type: multipart/signed; boundary="Apple-Mail=_C89F5BE8-30D9-423A-A1E8-4353C90E29BA"; protocol="application/pgp-signature"; micalg="pgp-sha512"
Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.8\))
Date: Fri, 29 Mar 2019 10:22:30 +0100
In-Reply-To: <86DE9F4C-CF1F-4D23-BAA8-3051459BCC86@cisco.com>
Cc: IPv6 Operations <v6ops@ietf.org>
To: "Rajiv Asati (rajiva)" <rajiva@cisco.com>
References: <C08F6471-3035-495C-B8AF-EE9FE516793F@gmail.com> <86DE9F4C-CF1F-4D23-BAA8-3051459BCC86@cisco.com>
X-Mailer: Apple Mail (2.3445.104.8)
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/WbVz0H0r0vO5Sv6hMZ1QhR83sEc>
Subject: Re: [v6ops] Operational Headache: Upstream liveness
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: v6ops discussion list <v6ops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/v6ops>, <mailto:v6ops-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/v6ops/>
List-Post: <mailto:v6ops@ietf.org>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/v6ops>, <mailto:v6ops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 29 Mar 2019 09:22:38 -0000


On Mar 29, 2019, at 7:09 AM, Rajiv Asati (rajiva) <rajiva@cisco.com> wrote:
> 
> Why is NUD not sufficient to address the problem (WAN neighbor unreachable)?
> 
> I hope that the HGW devices are compliant with RFC4861 / 7048.

Well, that seems like a reasonable hope. I think that Mikael is saying that in IPOE environments they might not be compliant, or compliant implementations still have a problem. I think the key point here is to uncover what the issue might be in the context he is discussing, as opposed to simply dismissing it.

> Cheers,
> Rajiv
> 
>> On Mar 29, 2019, at 6:44 AM, Fred Baker <fredbaker.ietf@gmail.com> wrote:
>> 
>> https://datatracker.ietf.org/doc/slides-104-v6ops-deutsche-telekom-terastream/, slide 9
>> 
>> What do we want to say on this issue? Mikael mentions draft-patterson-intarea-ipoe-health as possibly relevant, but I also get the idea that there is more to say; in this case, I think I need to send a note to the relevant authors and chairs asking them what the prognosis is and expressing operational interest. First, is there a consensus to do that? Second, do we have additional comments to pass along? Our comments might be adequately summarized by forwarding a link to this thread, or might rise to the level that needs to be discussed in an internet draft in v6ops. Comments?
>> --------------------------------------------------------------------------------
>> Victorious warriors win first and then go to war,
>> Defeated warriors go to war first and then seek to win.
>>    Sun Tzu
>> 
>> _______________________________________________
>> v6ops mailing list
>> v6ops@ietf.org
>> https://www.ietf.org/mailman/listinfo/v6ops

--------------------------------------------------------------------------------
Victorious warriors win first and then go to war,
Defeated warriors go to war first and then seek to win.
     Sun Tzu