Re: [homenet] Configuration must not be carried by the routing protocol

Henning Rogge <hrogge@googlemail.com> Thu, 27 June 2013 05:55 UTC

Return-Path: <hrogge@googlemail.com>
X-Original-To: homenet@ietfa.amsl.com
Delivered-To: homenet@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BAE1D21F9C2F for <homenet@ietfa.amsl.com>; Wed, 26 Jun 2013 22:55:52 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.978
X-Spam-Level:
X-Spam-Status: No, score=-1.978 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, NO_RELAYS=-0.001]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 74uW5HQxiZza for <homenet@ietfa.amsl.com>; Wed, 26 Jun 2013 22:55:52 -0700 (PDT)
Received: from mail-qa0-x231.google.com (mail-qa0-x231.google.com [IPv6:2607:f8b0:400d:c00::231]) by ietfa.amsl.com (Postfix) with ESMTP id 0303921F9C31 for <homenet@ietf.org>; Wed, 26 Jun 2013 22:55:51 -0700 (PDT)
Received: by mail-qa0-f49.google.com with SMTP id hu16so308816qab.8 for <homenet@ietf.org>; Wed, 26 Jun 2013 22:55:50 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=1o9tj6ZUllEjadogsiIxtqd3U3uMYBjy0sOnS0557ic=; b=Q++Dg7Wl5dWYVd9zawd5XqjgXvLXWt/A4eEM1lVzV/837QKVNBa5PVzHZSbxyzsISx 01xXMXpLIj1ZKrbIo5IgfkUSaH1JdbLN2nBYg4C1e0H7Aq8RqZc64sUSTgKycda7Tss8 fRvqqYu30tHSUcpuzWIehhsx+XZbdkgyH1v2/Fb24A6yvMWLEn3vr3ZlaMD/tv1IdG0J CVLftbiNOFkEaqHFGv3r3d4TuJyHqxrN3DhorZmnMdakjnidYmr4tHsiAmQ9Tm4mkl22 DtBlsaCfrk9uE1+P+lPRo3qRerYYdpnNvyJn625U5PPO/yu/BLmRg+OSohIz1RnXX6/+ hIYQ==
X-Received: by 10.49.62.33 with SMTP id v1mr8644503qer.53.1372312550358; Wed, 26 Jun 2013 22:55:50 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.224.174.82 with HTTP; Wed, 26 Jun 2013 22:55:30 -0700 (PDT)
In-Reply-To: <87a9mcbhx8.wl%jch@pps.univ-paris-diderot.fr>
References: <878v1yqhje.wl%jch@pps.univ-paris-diderot.fr> <0E223B9A-F615-4E46-971C-84A3117AA27A@employees.org> <87a9mcbhx8.wl%jch@pps.univ-paris-diderot.fr>
From: Henning Rogge <hrogge@googlemail.com>
Date: Thu, 27 Jun 2013 07:55:30 +0200
Message-ID: <CAGnRvuoDyqNzvMyYQuE=71hJx95b2RubR=bqaM4bRr+To4L6Tg@mail.gmail.com>
To: Juliusz Chroboczek <jch@pps.univ-paris-diderot.fr>
Content-Type: text/plain; charset="ISO-8859-1"
Cc: Ole Troan <otroan@employees.org>, "homenet@ietf.org Group" <homenet@ietf.org>
Subject: Re: [homenet] Configuration must not be carried by the routing protocol
X-BeenThere: homenet@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: <homenet.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/homenet>, <mailto:homenet-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/homenet>
List-Post: <mailto:homenet@ietf.org>
List-Help: <mailto:homenet-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/homenet>, <mailto:homenet-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 27 Jun 2013 05:55:52 -0000

On Thu, Jun 27, 2013 at 12:56 AM, Juliusz Chroboczek
<jch@pps.univ-paris-diderot.fr> wrote:
>> what's a routing protocol?
>> a distributed database.
>
> No, it isn't.
>
> ....
>
>> do we need to invent a separate distributed database for each class
>> of information?
>
> Yes, because different kinds of information have different
> requirements.  There is information that needs to be reliably
> synchronised in a timely manner (the link-state DB), there is
> information that must be distributed in a timely manner but need not
> be synchronised throughout the network (configuration information),
> there is global information that is too large to be distributed except
> on demand (DNS), there is local information that is not distributed
> except on demand (mDNS), and probably many other kinds that I'm missing.

I agree with Juliusz, putting all information transfer in the homenet
(including routing decisions, configuration and DNS?) area into a
single protocol is crazy. We don't gain a lot by this strategy except
a lot of complexity and inflexibility in the implementation.

Henning Rogge

--
We began as wanderers, and we are wanderers still. We have lingered
long enough on the shores of the cosmic ocean. We are ready at last to
set sail for the stars - Carl Sagan