Re: [RAM] Tunnelling & GigE jumbo frame size

Dino Farinacci <dino@cisco.com> Wed, 12 September 2007 18:22 UTC

Return-path: <ram-bounces@iab.org>
Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1IVWqn-0000R2-0L; Wed, 12 Sep 2007 14:22:09 -0400
Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1IVWqm-0000Kc-7l for ram@iab.org; Wed, 12 Sep 2007 14:22:08 -0400
Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1IVWql-0006KL-1x for ram@iab.org; Wed, 12 Sep 2007 14:22:08 -0400
X-IronPort-AV: E=Sophos;i="4.20,245,1186372800"; d="scan'208";a="131750874"
Received: from rtp-dkim-1.cisco.com ([64.102.121.158]) by rtp-iport-2.cisco.com with ESMTP; 12 Sep 2007 14:22:07 -0400
Received: from rtp-core-2.cisco.com (rtp-core-2.cisco.com [64.102.124.13]) by rtp-dkim-1.cisco.com (8.12.11/8.12.11) with ESMTP id l8CIM6eS029282; Wed, 12 Sep 2007 14:22:06 -0400
Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id l8CILoBo009125; Wed, 12 Sep 2007 18:22:02 GMT
Received: from xfe-rtp-202.amer.cisco.com ([64.102.31.21]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Wed, 12 Sep 2007 14:21:58 -0400
Received: from [192.168.0.3] ([10.82.208.19]) by xfe-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.1830); Wed, 12 Sep 2007 14:21:57 -0400
In-Reply-To: <E4A2C41B-454D-49CD-852C-B95ACA007971@muada.com>
References: <896E7873-B5D5-442E-AB33-63910A6E78BE@extremenetworks.com> <B39B869F-1148-4DC6-A308-02A125F40031@muada.com> <1CD6EB92-9167-4EAE-B372-A517572FCA4D@extremenetworks.com> <E4A2C41B-454D-49CD-852C-B95ACA007971@muada.com>
Mime-Version: 1.0 (Apple Message framework v752.3)
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Message-Id: <D79D73BE-84E5-40DA-A8D2-CC2B9B7B4C76@cisco.com>
Content-Transfer-Encoding: 7bit
From: Dino Farinacci <dino@cisco.com>
Subject: Re: [RAM] Tunnelling & GigE jumbo frame size
Date: Wed, 12 Sep 2007 11:22:00 -0700
To: Iljitsch van Beijnum <iljitsch@muada.com>
X-Mailer: Apple Mail (2.752.3)
X-OriginalArrivalTime: 12 Sep 2007 18:21:57.0870 (UTC) FILETIME=[CDEED0E0:01C7F569]
DKIM-Signature: v=0.5; a=rsa-sha256; q=dns/txt; l=589; t=1189621326; x=1190485326; c=relaxed/simple; s=rtpdkim1001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=dino@cisco.com; z=From:=20Dino=20Farinacci=20<dino@cisco.com> |Subject:=20Re=3A=20[RAM]=20Tunnelling=20&=20GigE=20jumbo=20frame=20size |Sender:=20 |To:=20Iljitsch=20van=20Beijnum=20<iljitsch@muada.com>; bh=asFxZCkxDPw7okFeB1Y2VSQb6Rdofu/uOEahPVYx4i8=; b=mjvLgubGlR710WG/n8AqSt5tGZVS1UFr4JipB/OORudhAZwu8prxR5r4TGXaUeJDucewX2RX 540kOiArR27n+NeyBjZVR4gP0QDbMwCVxaK1Lg2MzcQAvdESYuezxiDy;
Authentication-Results: rtp-dkim-1; header.From=dino@cisco.com; dkim=pass (s ig from cisco.com/rtpdkim1001 verified; );
X-Spam-Score: -4.0 (----)
X-Scan-Signature: 68c8cc8a64a9d0402e43b8eee9fc4199
Cc: RJ Atkinson <rja@extremenetworks.com>, ram@iab.org
X-BeenThere: ram@iab.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Routing and Addressing Mailing List <ram.iab.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/ram>, <mailto:ram-request@iab.org?subject=unsubscribe>
List-Archive: <http://www1.ietf.org/pipermail/ram>
List-Post: <mailto:ram@iab.org>
List-Help: <mailto:ram-request@iab.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/ram>, <mailto:ram-request@iab.org?subject=subscribe>
Errors-To: ram-bounces@iab.org

> Well obviously we shouldn't be saying "9k MTU" because it is too  
> imprecise. Also, it's irrelevant unless we're trying to come up  
> with a unified MTU size, which is something I am very much against,  
> as it doesn't solve the problem but only moves the goalposts. We  
> need to move to a situation where the capability to use larger  
> packets is used where it exists and to the degree that it exists.

I will change the reference in the LISP spec from "jumbo frames of  
9000 bytes" to "jumbo frames of 9180 bytes". Will be reflected in the  
next ID update.

Dino

_______________________________________________
RAM mailing list
RAM@iab.org
https://www1.ietf.org/mailman/listinfo/ram