IETF Logo Mail Archive

Re: [Bier] DR election ...

Toerless Eckert <eckert@cisco.com> Tue, 10 November 2015 00:15 UTC

Return-Path: <eckert@cisco.com>
X-Original-To: bier@ietfa.amsl.com
Delivered-To: bier@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 77CD51ACE2A for <bier@ietfa.amsl.com>; Mon, 9 Nov 2015 16:15:30 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -14.511
X-Spam-Level:
X-Spam-Status: No, score=-14.511 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham
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 tDeu_BnCYAAZ for <bier@ietfa.amsl.com>; Mon, 9 Nov 2015 16:15:29 -0800 (PST)
Received: from rcdn-iport-9.cisco.com (rcdn-iport-9.cisco.com [173.37.86.80]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 09BBA1A8782 for <bier@ietf.org>; Mon, 9 Nov 2015 16:15:28 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1306; q=dns/txt; s=iport; t=1447114529; x=1448324129; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=WWkqOUHZswLR58y9cJjgqXJvUpsZHzXXmriGJXjIMoM=; b=nD/vxQ81BSrtOZh/Z8i6gAUyHyjzRTmUQdk++F34w7vbhg9vHfseYEDV euHBKSBpNI1QEzSdBFgdAqFmkIzW+Bnh1W6jmLUd2/1FetQ+j131BySbD 9/L6Yheg08lnMeBVnA0/OMYauOi0766tYH3PykWHwcgexbbvEk71QKNmC c=;
X-IronPort-AV: E=Sophos;i="5.20,267,1444694400"; d="scan'208";a="43248324"
Received: from alln-core-4.cisco.com ([173.36.13.137]) by rcdn-iport-9.cisco.com with ESMTP; 10 Nov 2015 00:15:13 +0000
Received: from mcast-linux1.cisco.com (mcast-linux1.cisco.com [172.27.244.121]) by alln-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id tAA0FC6t006381 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 10 Nov 2015 00:15:13 GMT
Received: from mcast-linux1.cisco.com (localhost.cisco.com [127.0.0.1]) by mcast-linux1.cisco.com (8.13.8/8.13.8) with ESMTP id tAA0FCtV019466; Mon, 9 Nov 2015 16:15:12 -0800
Received: (from eckert@localhost) by mcast-linux1.cisco.com (8.13.8/8.13.8/Submit) id tAA0FBfg019465; Mon, 9 Nov 2015 16:15:11 -0800
Date: Mon, 09 Nov 2015 16:15:11 -0800
From: Toerless Eckert <eckert@cisco.com>
To: Tony Przygienda <tonysietf@gmail.com>
Message-ID: <20151110001511.GD7123@cisco.com>
References: <CA+b+ERmQuP_ex3CfmDkF39AGPOWZ8uV5X0pFpjvH9CoH4u_oHw@mail.gmail.com> <DD5FC8DE455C3348B94340C0AB5517334F8D64A1@nkgeml501-mbs.china.huawei.com> <BLUPR0501MB171503D7B01C633446BC527DD4150@BLUPR0501MB1715.namprd05.prod.outlook.com> <CA+wi2hNW3mtg4DA2xa686pM5zKOKM9zEOUGXa54UqPPX5z9YiA@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <CA+wi2hNW3mtg4DA2xa686pM5zKOKM9zEOUGXa54UqPPX5z9YiA@mail.gmail.com>
User-Agent: Mutt/1.4.2.2i
Archived-At: <http://mailarchive.ietf.org/arch/msg/bier/tyC61u8T7Af8WYcyK6SB7LbGEKs>
Cc: "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>, Haoweiguo <haoweiguo@huawei.com>, "bier@ietf.org" <bier@ietf.org>, IJsbrand Wijnands <ice@cisco.com>, Robert Raszuk <robert@raszuk.net>
Subject: Re: [Bier] DR election ...
X-BeenThere: bier@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: "\"Bit Indexed Explicit Replication discussion list\"" <bier.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/bier>, <mailto:bier-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/bier/>
List-Post: <mailto:bier@ietf.org>
List-Help: <mailto:bier-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/bier>, <mailto:bier-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 10 Nov 2015 00:15:30 -0000

Everybody seem to agree that this should technically be discussed
in PIM-WG, but the fact that this thread happens on BIER proves Ice's point
on the microphone in yokohama: BIER has the most active community caring about this.

On Mon, Nov 09, 2015 at 09:16:04AM -0800, Tony Przygienda wrote:
> On Mon, Nov 9, 2015 at 7:08 AM, Jeffrey (Zhaohui) Zhang <zzhang@juniper.net>
> wrote:
> 
> > Not exactly sure about the details of active-active or active-standby
> > scenarios and their relationship to BIER, but here is my understanding:
> >
> >
> >
> > - BIER architecture has three layers: multicast overlay, bier forwarding,
> > and routing underlay. It is really the multicast overlay???s job to handle
> > the multi-homing ??? be it PIM, IGMP/MLD, or BGP, or any other things.
> >
> 
> +1
> 
> 
> > - While Ice???s DR election draft was triggered from using IGMP/MLD to
> > replace PIM for multicast overlay signaling in a BIER domain and the draft
> > has some BIER keywords in it, it is really independent of BIER. The draft
> > is still applicable if BIER had never happened.
> >
> 
> +1

> _______________________________________________
> BIER mailing list
> BIER@ietf.org
> https://www.ietf.org/mailman/listinfo/bier


-- 
---
Toerless Eckert, eckert@cisco.com

v2.23.0 | Report a Bug | By Email