Re: Comparing an old flow snapshot with some packet size data
Brian Carpenter CERN-CN <brian@dxcoms.cern.ch> Fri, 09 August 1996 09:03 UTC
Received: from ietf.org by ietf.org id aa09300; 9 Aug 96 5:03 EDT
Received: from cnri by ietf.org id aa09296; 9 Aug 96 5:03 EDT
Received: from murtoa.cs.mu.OZ.AU by CNRI.Reston.VA.US id aa04017; 9 Aug 96 5:03 EDT
Received: from mailing-list by murtoa.cs.mu.OZ.AU (8.6.9/1.0) id SAA14228; Fri, 9 Aug 1996 18:56:59 +1000
Received: from munnari.OZ.AU by murtoa.cs.mu.OZ.AU (8.6.9/1.0) with SMTP id SAA14199; Fri, 9 Aug 1996 18:42:04 +1000
Received: from dxmint.cern.ch by munnari.OZ.AU with SMTP (5.83--+1.3.1+0.56) id IA11499; Fri, 9 Aug 1996 18:42:02 +1000 (from brian@dxcoms.cern.ch)
Received: from dxcoms.cern.ch (dxcoms.cern.ch [137.138.28.176]) by dxmint.cern.ch with SMTP id KAA09065; Fri, 9 Aug 1996 10:41:20 +0200 (MET DST)
Received: by dxcoms.cern.ch; (5.65v3.0/1.1.8.2/28Jul95-0949AM) id AA04143; Fri, 9 Aug 1996 10:40:48 +0200
Message-Id: <9608090840.AA04143@dxcoms.cern.ch>
Subject: Re: Comparing an old flow snapshot with some packet size data
To: Andrew Partan <asp@partan.com>
Date: Fri, 09 Aug 1996 10:40:48 +0200
Sender: ietf-archive-request@ietf.org
From: Brian Carpenter CERN-CN <brian@dxcoms.cern.ch>
Cc: pferguso@cisco.com, jhawk@bbnplanet.com, kwe@6sigmanets.com, big-internet@munnari.oz.au
In-Reply-To: <199608081958.PAA01711@home.partan.com> from "Andrew Partan" at Aug 8, 96 03:58:00 pm
X-Mailer: ELM [version 2.4 PL25]
Mime-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Precedence: bulk
Andrew, > One question that I have been trying to figure out is > What size MTU should an ISP support on its backbone? > "Therefore, the default IP MTU for use with ATM AAL5 shall be 9180 octets. All implementations compliant and conformant with this specification shall support at least the default IP MTU value for use over ATM AAL5." - RFC 1626 It seems "obvious" that the ISPs should if possible support at least the largest default MTU likely to be found on user sites... but... (1) it is largely irrelevant until we get rid of http 1.0 (2) Van has good arguments why larger MTUs may be a clear loser on multi-hop TCP paths (3) since MTU discovery is still not by any means universal, there is a strong risk of inducing fragmentation at Internet exchanges. Can you imagine the impact of going through the Ethernet part of MAE East with 4k or 9k packets? So I'd hazard a guess that it is not time to think of going above 1500. Brian Carpenter
- Re: Comparing an old flow snapshot with some pack… Greg Minshall
- Re: Comparing an old flow snapshot with some pack… Dorian R. Kim
- Re: Comparing an old flow snapshot with some pack… John Hawkinson
- Re: Comparing an old flow snapshot with some pack… Michael A. Patton
- Re: Comparing an old flow snapshot with some pack… Greg Minshall
- Re: Comparing an old flow snapshot with some pack… Kent W. England
- Re: Comparing an old flow snapshot with some pack… Paul Ferguson
- Re: Comparing an old flow snapshot with some pack… Andrew Partan
- Re: Comparing an old flow snapshot with some pack… Greg Minshall
- Re: Comparing an old flow snapshot with some pack… Paul Ferguson
- Re: Comparing an old flow snapshot with some pack… Karl Denninger, MCSNet
- Re: Comparing an old flow snapshot with some pack… Evan Wetstone
- Re: Comparing an old flow snapshot with some pack… Kent W. England
- Re: Comparing an old flow snapshot with some pack… Kent W. England
- Re: Comparing an old flow snapshot with some pack… Jeremy Porter
- Re: Comparing an old flow snapshot with some pack… Dorian R. Kim
- Re: Comparing an old flow snapshot with some pack… Brian Carpenter CERN-CN
- Re: Comparing an old flow snapshot with some pack… Andrew Partan
- Re: Comparing an old flow snapshot with some pack… Andrew Partan
- Re: Comparing an old flow snapshot with some pack… Dorian R. Kim
- Re: Comparing an old flow snapshot with some pack… John Lekashman
- Re: Comparing an old flow snapshot with some pack… Robert Moskowitz
- Re: Comparing an old flow snapshot with some pack… Kent W. England
- Re: Comparing an old flow snapshot with some pack… Robert Moskowitz
- Re: Comparing an old flow snapshot with some pack… John Hawkinson
- Re: Comparing an old flow snapshot with some pack… Dorian R. Kim