Re: [Roll] Border router failure detection

Konrad Iwanicki <iwanicki@mimuw.edu.pl> Fri, 15 April 2022 09:21 UTC

Return-Path: <iwanicki@mimuw.edu.pl>
X-Original-To: roll@ietfa.amsl.com
Delivered-To: roll@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5EC6C3A0F5C for <roll@ietfa.amsl.com>; Fri, 15 Apr 2022 02:21:44 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.91
X-Spam-Level:
X-Spam-Status: No, score=-1.91 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
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 ryjqeH_8Tx6s for <roll@ietfa.amsl.com>; Fri, 15 Apr 2022 02:21:39 -0700 (PDT)
Received: from mail.mimuw.edu.pl (mail.mimuw.edu.pl [IPv6:2001:6a0:5001::4]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 962BE3A0F5E for <roll@ietf.org>; Fri, 15 Apr 2022 02:21:39 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1]) by duch.mimuw.edu.pl (Postfix) with ESMTP id 6CC1A61F64794; Fri, 15 Apr 2022 11:21:35 +0200 (CEST)
X-Virus-Scanned: amavisd-new at mimuw.edu.pl
Received: from duch.mimuw.edu.pl ([127.0.0.1]) by localhost (mail.mimuw.edu.pl [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id h0ef0YZubWP9; Fri, 15 Apr 2022 11:21:33 +0200 (CEST)
Received: from [192.168.0.31] (unknown [213.134.178.208]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by duch.mimuw.edu.pl (Postfix) with ESMTPSA; Fri, 15 Apr 2022 11:21:31 +0200 (CEST)
Message-ID: <eed72f83-127a-8705-f956-d4765b967027@mimuw.edu.pl>
Date: Fri, 15 Apr 2022 11:21:24 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:91.0) Gecko/20100101 Thunderbird/91.8.0
Content-Language: en-US
To: Routing Over Low power and Lossy networks <roll@ietf.org>, Michael Richardson <mcr+ietf@sandelman.ca>
References: <CAP+sJUfcEY2DNEQV=duJdN6P8zZn0ccuei+4ra-B6TcLb5z8Kg@mail.gmail.com> <49ac5fc3-4a3c-fb87-d366-eb7e7cfd60df@mimuw.edu.pl> <18233.1583176305@localhost> <CAO0Djp3w4vWCOawQ+eegNTRzb_HRGYH6n=bdEH6iVf5ZO0AGFQ@mail.gmail.com> <f71fe153-c0d1-097e-a72e-49ece97cbd48@mimuw.edu.pl> <10272666-28c7-ab3e-9ceb-1b8f2bb6e5e5@mimuw.edu.pl> <CO1PR11MB4881A5AA0E5C5010FD2BE39ED8749@CO1PR11MB4881.namprd11.prod.outlook.com> <bc174171-4b68-40b2-d532-463709e5bea8@mimuw.edu.pl> <CO1PR11MB4881D0C985582B28AE2DE8BED84E9@CO1PR11MB4881.namprd11.prod.outlook.com> <ab695952-3b11-46ad-f638-622ca770f8e1@mimuw.edu.pl> <02c7a894-b7a8-8fcb-9119-172a91a3871b@mimuw.edu.pl> <8421.1620834368@localhost> <d0f9bd53-ed96-1512-5bc2-59063ba2d5dc@mimuw.edu.pl> <b556ca50-b2db-798f-1cf2-8d7a77d5ad63@mimuw.edu.pl> <21a67951-92c7-5cfa-7bda-a11ac004492c@mimuw.edu.pl> <260038.1647531160@dooku> <5fad2f45-02a5-7241-f797-43165b0fc9a2@mimuw.edu.pl> <386984.1649868259@dooku>
From: Konrad Iwanicki <iwanicki@mimuw.edu.pl>
In-Reply-To: <386984.1649868259@dooku>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/roll/gjnnD6uJ7BQGlCa1skIyQVHznm0>
Subject: Re: [Roll] Border router failure detection
X-BeenThere: roll@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Routing Over Low power and Lossy networks <roll.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/roll>, <mailto:roll-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/roll/>
List-Post: <mailto:roll@ietf.org>
List-Help: <mailto:roll-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/roll>, <mailto:roll-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 15 Apr 2022 09:21:45 -0000

On 13/04/2022 18:44, Michael Richardson wrote:
> Konrad Iwanicki <iwanicki@mimuw.edu.pl> wrote:
>      > I may be wrong, but what I understood from Pascal's idea is that we
>      > could try to get the root more involved in the process of coordinating
>      > the children acting as sentinels, at least in the periods when it is
>      > up.
> 
> I think that this is an interesting thing to do.
> I wonder if we need to do this now, or if it is something that could be added
> later.

That's a good question. From what I remember, the idea concerned probing 
the root, which is somewhat independent of RNFD's current focus but of 
course complementary. In such a case, indeed, this could be added later 
as a separate mechanism. I may be wrong, though.

> As I think about it, I think that we should (quickly) publish RNFD as an
> Experimental RFC.

I have little experience with the various tracks, in particular the 
advantages of an intermediate experimental RFC. If you think that this 
is the best way to move things forward with the draft, I would not object.

Best,
-- 
- Konrad Iwanicki.