IETF Logo Mail Archive

[Idr] draft-chen-idr-ctr-availability-00.txt

Robert Raszuk <robert@raszuk.net> Mon, 09 March 2020 09:42 UTC

Return-Path: <robert@raszuk.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 7CDF03A0B8E for <idr@ietfa.amsl.com>; Mon, 9 Mar 2020 02:42:45 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.098
X-Spam-Level:
X-Spam-Status: No, score=-2.098 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, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, 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=raszuk.net
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 8T4RXzueGrWJ for <idr@ietfa.amsl.com>; Mon, 9 Mar 2020 02:42:43 -0700 (PDT)
Received: from mail-oi1-x234.google.com (mail-oi1-x234.google.com [IPv6:2607:f8b0:4864:20::234]) (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 CB1373A0B8B for <idr@ietf.org>; Mon, 9 Mar 2020 02:42:43 -0700 (PDT)
Received: by mail-oi1-x234.google.com with SMTP id l12so9469347oil.9 for <idr@ietf.org>; Mon, 09 Mar 2020 02:42:43 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=raszuk.net; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=HfHusorwqaRXndc4CLOFqhrqsK9MqL/CbwjGCT5itSg=; b=doukZd/htH5l5RWoAexIfROPDYTn2I4tDxZOhBeYetMnIINfXd6+iy9QntkLWAfwJJ 38pKZtnva8kpgROV22RbvMDb6UkOXLE9p4CLfT3N8NyF6UmbKlkY07TX9ivGF5EnqPmi cAuYzBtJWq04FGr7VnXufZVwXTQfqSf2cOXRXOf1ZoPlxcoat5wZnkIrB9U00Rjk/QQx uE7X0yM6T3wmtOw82FhAjlRK2FokAt/WNFdn/ahUD8s1NW09o2v//3hnK87ytO3PLSKf A6VxpFUqLANUI65q81A9R4wN29LN6cUF/SzY9x6yEu4V8qeYfwhqaQzU5END5AswzJCB IjIA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=HfHusorwqaRXndc4CLOFqhrqsK9MqL/CbwjGCT5itSg=; b=sRmKlkyASfD6GMsW2x4sX28mG+DuF+0fdWDApU/liG7awUxFjNYxRP8FU+p4rOcUXK nBIUWFluJZkUVAWs/OVqIQWGOC264k/6kd3U7FcF0Nu/Bl/lbcz/8tOBGT/1o21S75o8 TLi0hXrIA71W/sk1HUCqM6yg1UPGwhc0PHKiz4X/fPevHlkw6JQQekiNbow+DKpLrut5 7iORD5pWU3ujHPqVyxhN8x6UlIvysGOjEahoM2tTFfosFmNvRIwsiUmk4y1FXolDTJNA GAGqNVCASWvyXGwfWJVeVUoyz7m2LCs2wpz8CvzN0T1fVvOL7MOGHcrq2Q7dh9x1F9UI ZehA==
X-Gm-Message-State: ANhLgQ2DNb/oRxrzegYKdel8+RTSVvrV3TGj5ldGvA7LmcG6TBsxnGYJ kJ5ruOSOmr+VZxGjcyk8Vp+nPBD981A9f58pgHEZwORG
X-Google-Smtp-Source: ADFU+vv2GtZFZdV9LKpqz+Q6Bj9M9A89QqP+LtGqNY0DD112in0hI/efbe0xBafLlgDsUakwK1Zchcje4FTxQSrptbI=
X-Received: by 2002:aca:230f:: with SMTP id e15mr10791213oie.54.1583746961991; Mon, 09 Mar 2020 02:42:41 -0700 (PDT)
MIME-Version: 1.0
References: <158371607510.6713.4634073389865271789@ietfa.amsl.com>
In-Reply-To: <158371607510.6713.4634073389865271789@ietfa.amsl.com>
From: Robert Raszuk <robert@raszuk.net>
Date: Mon, 09 Mar 2020 10:42:31 +0100
Message-ID: <CAOj+MMGuEwUB_xMU+rhS-wLsn02cRo6qiantuvy7Z3vUXHtT=w@mail.gmail.com>
To: "idr@ietf. org" <idr@ietf.org>
Content-Type: multipart/alternative; boundary="000000000000157d2305a068d365"
Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/yzOLxmHLSLbA_n3cBtT6yM-ckgY>
Subject: [Idr] draft-chen-idr-ctr-availability-00.txt
X-BeenThere: idr@ietf.org
X-Mailman-Version: 2.1.29
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: Mon, 09 Mar 2020 09:42:46 -0000

Dear Authors,

I read your draft and sorry to say do not have good news.

1)

First you break IBGP rule from base BGP spec. It is pretty standard that
controllers distribute information via IBGP and with the help of RRs. Only
RRs can send information received over IBGP to other IBGP peers.

In your case it is hard to assume that all NEs are RRs. It is also hard to
assume that always multiple controllers from the same controller cluster
will be connecting to the same RRs.

2)

The best solution to your problem is to have two independent controller
clusters. When fatal intra-cluster failures occur all cluster members
should drop BGP sessions to the network.

3)

Asking all network elements to participate in exchanging information
between controllers is really not a good idea. Not to mention that your
current encoding does not even have a notion of cluster id.

Many thx,
R.

---------- Forwarded message ---------
From: <internet-drafts@ietf.org>
Date: Mon, Mar 9, 2020 at 2:08 AM
Subject: I-D Action: draft-chen-idr-ctr-availability-00.txt
To: <i-d-announce@ietf.org>



A New Internet-Draft is available from the on-line Internet-Drafts
directories.


        Title           : BGP for Network High Availability
        Authors         : Huaimo Chen
                          Yanhe Fan
                          Aijun Wang
                          Lei Liu
                          Xufeng Liu
        Filename        : draft-chen-idr-ctr-availability-00.txt
        Pages           : 12
        Date            : 2020-03-08

Abstract:
   This document describes protocol extensions to BGP for improving the
   reliability or availability of a network controlled by a controller
   cluster.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-chen-idr-ctr-availability/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-chen-idr-ctr-availability-00
https://datatracker.ietf.org/doc/html/draft-chen-idr-ctr-availability-00


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


_______________________________________________
I-D-Announce mailing list
I-D-Announce@ietf.org
https://www.ietf.org/mailman/listinfo/i-d-announce
Internet-Draft directories: http://www.ietf.org/shadow.html
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt

v2.29.0 | Report a Bug | By Email | System Status