IETF Logo Mail Archive

Re: [Idr] WG Adoption call for draft-spaghetti-idr-bgp-sendholdtimer-09 (2/28/2023 to 3/14/2023)

Gert Doering <gert@space.net> Tue, 07 March 2023 10:51 UTC

Return-Path: <gert@space.net>
X-Original-To: idr@ietfa.amsl.com
Delivered-To: idr@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C3148C151546 for <idr@ietfa.amsl.com>; Tue, 7 Mar 2023 02:51:37 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -7.096
X-Spam-Level:
X-Spam-Status: No, score=-7.096 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=space.net
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FHJP9YquWyv5 for <idr@ietfa.amsl.com>; Tue, 7 Mar 2023 02:51:33 -0800 (PST)
Received: from gatekeeper1-relay.space.net (gatekeeper1-relay.space.net [IPv6:2001:608:3:85::38]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 23253C14EB17 for <idr@ietf.org>; Tue, 7 Mar 2023 02:51:32 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=space.net; i=@space.net; q=dns/txt; s=esa; t=1678186293; x=1709722293; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=LNAQIMbm5fPHU2cuJ1sXgh+5GsXQOWZ0TWcIVl7i6sg=; b=K2VhzxC//fALsAbTpav/hPaQyXrDc5BlKjZMwVM3LzxO1B+jGaMiq48C deBuqwpYNQwGSPmkBRYg2ja4HCZdC+/GcX9AmrdNnh7roMp7NjX0xoKIU FXh8ufvJT8v0AfwQKP11sZUmC2JBIhG6RW9EEY5ANjxIQZv5NjiJroWcu PWXCg4gj1+XzYjcs5Ii5PTrfV5HIapUPjTG4txnnGCpOxnojUKtITJaO5 UsTMObW2V3h3b5Qvyv+MekpgZc3yiZK7Vdq1lKUk66CowclrBvitLGYQA AID4Eo51N1o3xnwdTQJmRgOFjy60rMrYHqcO1DIDAPk0UDO/nup6Ftzq/ g==;
X-SpaceNet-SBRS: None
Received: from mobil.space.net ([195.30.115.67]) by gatekeeper1-relay.space.net with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Mar 2023 11:51:31 +0100
X-Original-To: idr@ietf.org
Received: from mobil.space.net (localhost [IPv6:::1]) by mobil.space.net (Postfix) with ESMTP id 6876D40C06 for <idr@ietf.org>; Tue, 7 Mar 2023 11:51:31 +0100 (CET)
X-SpaceNet-Relay: true
Received: from moebius4.space.net (moebius4.space.net [IPv6:2001:608:2:2::251]) by mobil.space.net (Postfix) with ESMTP id 4B4C2405EB; Tue, 7 Mar 2023 11:51:31 +0100 (CET)
Received: by moebius4.space.net (Postfix, from userid 1007) id 421CA11152; Tue, 7 Mar 2023 11:51:31 +0100 (CET)
Date: Tue, 07 Mar 2023 11:51:31 +0100
From: Gert Doering <gert@space.net>
To: Robert Raszuk <robert@raszuk.net>
Cc: Gert Doering <gert@space.net>, Mikael Abrahamsson <swmike@swm.pp.se>, Job Snijders <job=40fastly.com@dmarc.ietf.org>, idr@ietf.org
Message-ID: <ZAcXMxrEKHXfYeco@Space.Net>
References: <ZAZSyywxxg0HkaDw@snel> <CAOj+MMGiB8iiqKbj40kZsSFAQXCQ+baGQWuA7oQ1D0qF5aygeQ@mail.gmail.com> <alpine.DEB.2.20.2303070725390.2636@uplift.swm.pp.se> <CAOj+MMGUfxd1LLta9=_HU+uMKcbVVE6ijkG84-ST0LDo3m2MYQ@mail.gmail.com> <alpine.DEB.2.20.2303070953000.2636@uplift.swm.pp.se> <CAOj+MMF8gELjxXB=kmn3eTu8X96vP7ueOTSA6Q+V_086wfO=NQ@mail.gmail.com> <ZAcRQYKTX1kvZN+e@Space.Net> <CAOj+MMEkZV=Fi8UPfniwO4TyzbQVzgNZf9igU5j8TU_n0O7O-g@mail.gmail.com> <ZAcUWQFP61QdBxKx@Space.Net> <CAOj+MMGGR16npG+Bf=uPM8JB4TL=dJR8CT=9RGOW=xvL+G5HcQ@mail.gmail.com>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="tU/uFfwpQdF5tOqx"
Content-Disposition: inline
In-Reply-To: <CAOj+MMGGR16npG+Bf=uPM8JB4TL=dJR8CT=9RGOW=xvL+G5HcQ@mail.gmail.com>
Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/Hb7p69FoTapKO_eKVuEJeYoGdo0>
Subject: Re: [Idr] WG Adoption call for draft-spaghetti-idr-bgp-sendholdtimer-09 (2/28/2023 to 3/14/2023)
X-BeenThere: idr@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: Inter-Domain Routing <idr.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/idr>, <mailto:idr-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/idr/>
List-Post: <mailto:idr@ietf.org>
List-Help: <mailto:idr-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/idr>, <mailto:idr-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 07 Mar 2023 10:51:37 -0000

Hi,

On Tue, Mar 07, 2023 at 11:45:34AM +0100, Robert Raszuk wrote:
> IMO the only thing BGP needs to do is to enable it in the socket. BGP is
> not getting any USER TIMEOUT expired which in turn forces it to do any
> actions in respect to the connection. TCP handles it and TCP closes the
> connection. BGP can treat it as any other case of TCP closing connection.

But that would be the wrong way to deal with it.  There is a significiant
problem in the network, which should not be dealt with "like any other
session reset" - so you need to add code to handle that, and this would
effectively be "modify FSM".

Which is like most of the draft deals with - the actual code change
needed in a BGP implementation is minimal (as Claudio demonstrated).

How much more work would it be to get USER_TIMEOUT into IOS, IOS XE, ...
TCP stacks?

Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

SpaceNet AG                      Vorstand: Sebastian v. Bomhard, Michael Emmer
Joseph-Dollinger-Bogen 14        Aufsichtsratsvors.: A. Grundner-Culemann
D-80807 Muenchen                 HRB: 136055 (AG Muenchen)
Tel: +49 (0)89/32356-444         USt-IdNr.: DE813185279

v2.23.0 | Report a Bug | By Email