IETF Logo Mail Archive

Re: Fuzzy-layering and its suggestion

Brian E Carpenter <brian@hursley.ibm.com> Sun, 08 September 2002 13:44 UTC

Received: from loki.ietf.org (loki [10.27.2.29]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA06616 for <ietf-web-archive@odin.ietf.org>; Sun, 8 Sep 2002 09:44:27 -0400 (EDT)
Received: (from adm@localhost) by loki.ietf.org (8.9.1b+Sun/8.9.1) id JAA21226 for ietf-outbound.10@loki.ietf.org; Sun, 8 Sep 2002 09:44:01 -0400 (EDT)
Received: from ietf.org (odin.ietf.org [10.27.2.28]) by loki.ietf.org (8.9.1b+Sun/8.9.1) with ESMTP id JAA21200 for <ietf-mainout@loki.ietf.org>; Sun, 8 Sep 2002 09:41:50 -0400 (EDT)
Received: by ietf.org (8.9.1a/8.9.1a) id JAA06517 for ietf-mainout@loki.ietf.org; Sun, 8 Sep 2002 09:39:50 -0400 (EDT)
X-Authentication-Warning: ietf.org: majordom set sender to owner-ietf@ietf.org using -f
Received: from mail-gw2.hursley.ibm.com (mail-gw2.hursley.ibm.com [194.196.110.19]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA06513 for <ietf@ietf.org>; Sun, 8 Sep 2002 09:39:45 -0400 (EDT)
Received: from localhost.localdomain ([127.0.0.1] helo=mail-gw2.hursley.ibm.com) by mail-gw2.hursley.ibm.com with esmtp (Exim 4.10) id 17o2J4-0008Ir-00; Sun, 08 Sep 2002 14:40:54 +0100
Received: from [9.20.45.103] (helo=sp15en17.hursley.ibm.com) by mail-gw2.hursley.ibm.com with esmtp (Exim 4.10) id 17o2J4-0008Im-00; Sun, 08 Sep 2002 14:40:54 +0100
Received: from hursley.ibm.com (gsine06.us.sine.ibm.com [9.14.6.46]) by sp15en17.hursley.ibm.com (AIX4.3/8.9.3/8.9.3) with ESMTP id OAA42776; Sun, 8 Sep 2002 14:40:51 +0100
Message-ID: <3D7B0CAD.C8339952@hursley.ibm.com>
Date: Sun, 08 Sep 2002 10:39:09 +0200
From: Brian E Carpenter <brian@hursley.ibm.com>
Organization: IBM
X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U)
X-Accept-Language: en,fr,de
MIME-Version: 1.0
To: Jason Gao <jag@kinet.com.cn>
CC: ietf@ietf.org
Subject: Re: Fuzzy-layering and its suggestion
References: <001f01c254dd$b30bdd40$5019e29f@fujitsu>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Transfer-Encoding: 7bit
Sender: owner-ietf@ietf.org
Precedence: bulk
Content-Transfer-Encoding: 7bit
X-Loop: ietf@ietf.org
Content-Transfer-Encoding: 7bit

Jason Gao wrote:
...
> --- IPv6 flow label assignment
> 
> Transport layer may set a 'control' bit in the IPv6 Traffic Class octet of the initiating packet
> during the setup phase of a connection.
> 
> 
> 
> The edge router inspects the control bit. If it is set, the edge router can further inspect the
> packet, and reserve resource as required by the piggybacked resource reservation header in the
> transport layer packet, allocate and/or assign a flow label to the expected connection, put the flow
> label in the flow label field of the initiating acknowledgement packet.

No. There is no such usage of the traffic class octet. See RFC 2474.
Also, only the source host of a packet may set the flow label.
See draft-ietf-ipv6-flow-label-03.txt

   Brian

v2.23.0 | Report a Bug | By Email