IETF Logo Mail Archive

Re: draft-suping-bfd-mpls-fecmismatch-00 questions

George Swallow <swallow@cisco.com> Sat, 26 February 2005 16:26 UTC

Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA13965; Sat, 26 Feb 2005 11:26:33 -0500 (EST)
Received: from megatron.ietf.org ([132.151.6.71]) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1D54mQ-0006c4-4x; Sat, 26 Feb 2005 11:26:59 -0500
Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1D54kY-0004gH-Sb; Sat, 26 Feb 2005 11:25:02 -0500
Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1D54kX-0004fo-6g for rtg-bfd@megatron.ietf.org; Sat, 26 Feb 2005 11:25:02 -0500
Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id LAA13891 for <rtg-bfd@ietf.org>; Sat, 26 Feb 2005 11:24:58 -0500 (EST)
Received: from sj-iport-3-in.cisco.com ([171.71.176.72] helo=sj-iport-3.cisco.com) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1D54ks-0006a9-TE for rtg-bfd@ietf.org; Sat, 26 Feb 2005 11:25:24 -0500
Received: from sj-core-1.cisco.com (171.71.177.237) by sj-iport-3.cisco.com with ESMTP; 26 Feb 2005 09:39:56 +0000
X-BrightmailFiltered: true
X-Brightmail-Tracker: AAAAAA==
X-IronPort-AV: i="3.90,118,1107734400"; d="scan'208"; a="229572413:sNHT18746832"
Received: from flask.cisco.com (IDENT:mirapoint@flask.cisco.com [161.44.122.62]) by sj-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id j1QGOjuC018382; Sat, 26 Feb 2005 08:24:46 -0800 (PST)
Received: from swallow-mac.cisco.com (che-vpn-cluster-2-90.cisco.com [10.86.242.90]) by flask.cisco.com (MOS 3.4.6-GR) with ESMTP id APK52191; Sat, 26 Feb 2005 11:24:46 -0500 (EST)
Received: by swallow-mac.cisco.com (Postfix, from userid 501) id 7489022F1E0; Sat, 26 Feb 2005 11:25:49 -0500 (EST)
Received: from cisco.com (localhost [127.0.0.1]) by swallow-mac.cisco.com (Postfix) with ESMTP id 5399B22F1D7; Sat, 26 Feb 2005 11:25:49 -0500 (EST)
To: zhaisuping@huawei.com
In-reply-to: Your message of "Sat, 26 Feb 2005 09:41:49 +0800." <0ICH00M6UWPNRF@szxml02-in.huawei.com>
From: George Swallow <swallow@cisco.com>
X-Mailer: MH-E 7.4.3; nmh 1.1; GNU Emacs 21.2.1
Date: Sat, 26 Feb 2005 11:25:48 -0500
Message-Id: <20050226162549.7489022F1E0@swallow-mac.cisco.com>
X-Spam-Score: 0.0 (/)
X-Scan-Signature: 856eb5f76e7a34990d1d457d8e8e5b7f
Cc: "rtg-bfd@ietf.org" <rtg-bfd@ietf.org>
Subject: Re: draft-suping-bfd-mpls-fecmismatch-00 questions
X-BeenThere: rtg-bfd@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "RTG Area: Bidirectional Forwarding Detection DT" <rtg-bfd.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/rtg-bfd>, <mailto:rtg-bfd-request@ietf.org?subject=unsubscribe>
List-Post: <mailto:rtg-bfd@ietf.org>
List-Help: <mailto:rtg-bfd-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/rtg-bfd>, <mailto:rtg-bfd-request@ietf.org?subject=subscribe>
Sender: rtg-bfd-bounces@ietf.org
Errors-To: rtg-bfd-bounces@ietf.org
X-Spam-Score: 0.0 (/)
X-Scan-Signature: d6b246023072368de71562c0ab503126

> In the section 2 of the draft, there is description of the 
> problem the draft want to solve.

I assume you mean this:

   "The result is that the LDP label is popped in the core of 
   the network, and the popping LSR may attempt to forward the 
   application label."

I'm not particularly persuaded by this example.  A properly designed
router would *not* forward the application label!

...George

========================================================================
George Swallow             Cisco Systems                  (978) 936-1398
                           1414 Massachusetts Avenue
                           Boxborough, MA 01719

v2.31.3 | Report a Bug | By Email | System Status