Re: BFD Echo mode coverage in BFD for VXLAN

Jeffrey Haas <jhaas@pfrc.org> Wed, 11 September 2019 14:51 UTC

Return-Path: <jhaas@slice.pfrc.org>
X-Original-To: rtg-bfd@ietfa.amsl.com
Delivered-To: rtg-bfd@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 59BBE120132 for <rtg-bfd@ietfa.amsl.com>; Wed, 11 Sep 2019 07:51:05 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, 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 c3uY8kgzjqbu for <rtg-bfd@ietfa.amsl.com>; Wed, 11 Sep 2019 07:51:04 -0700 (PDT)
Received: from slice.pfrc.org (slice.pfrc.org [67.207.130.108]) by ietfa.amsl.com (Postfix) with ESMTP id 0119712009C for <rtg-bfd@ietf.org>; Wed, 11 Sep 2019 07:51:03 -0700 (PDT)
Received: by slice.pfrc.org (Postfix, from userid 1001) id 847491E2F3; Wed, 11 Sep 2019 10:53:45 -0400 (EDT)
Date: Wed, 11 Sep 2019 10:53:45 -0400
From: Jeffrey Haas <jhaas@pfrc.org>
To: xiao.min2@zte.com.cn
Cc: rtg-bfd@ietf.org
Subject: Re: BFD Echo mode coverage in BFD for VXLAN
Message-ID: <20190911145345.GC23252@pfrc.org>
References: <20190910175147.GG1662@pfrc.org> <201909111201112154271@zte.com.cn>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <201909111201112154271@zte.com.cn>
User-Agent: Mutt/1.5.21 (2010-09-15)
Archived-At: <https://mailarchive.ietf.org/arch/msg/rtg-bfd/A22pOR3yUu3fGI9GZlOf4A-KgQ4>
X-BeenThere: rtg-bfd@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "RTG Area: Bidirectional Forwarding Detection DT" <rtg-bfd.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rtg-bfd>, <mailto:rtg-bfd-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/rtg-bfd/>
List-Post: <mailto:rtg-bfd@ietf.org>
List-Help: <mailto:rtg-bfd-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rtg-bfd>, <mailto:rtg-bfd-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 11 Sep 2019 14:51:05 -0000

Xiam Min,

On Wed, Sep 11, 2019 at 12:01:11PM +0800, xiao.min2@zte.com.cn wrote:
> From my personal perspective, I don't think we should require BFD for
> VxLAN to support Echo mode, because as I know, although the final standard
> is still on the way, many vendors including my company have already
> implemented BFD for VxLAN, and it seems that works fine, there is no
> request from them on Echo mode, which in my view is a lightweight BFD tool
> used to substitute a relatively more complex BFD implementation.

Thanks for your commentary.

Also, as an implementor, does your implementation's bootstrapping for BFD
sessions follow the text that is in the current version of the
internet-draft?  There is some continuing debate holding up last call
comments on this point.

-- Jeff