IETF Logo Mail Archive

Re: Window Scale option

braden@isi.edu Wed, 06 May 1998 17:19 UTC

Delivery-Date: Wed, 06 May 1998 13:21:57 -0400
Return-Path: tcplw-relay@services.BSDI.COM
Received: from cnri.reston.va.us (ns.cnri.reston.va.us [132.151.1.1]) by ietf.org (8.8.5/8.8.7a) with ESMTP id NAA14801 for <ietf-archive@ietf.org>; Wed, 6 May 1998 13:19:16 -0400 (EDT)
Received: from services.BSDI.COM (services.BSDI.COM [205.230.225.19]) by cnri.reston.va.us (8.8.5/8.8.7a) with ESMTP id NAA13573 for <IETF-archive@cnri.reston.va.us>; Wed, 6 May 1998 13:21:28 -0400 (EDT)
Received: (from daemon@localhost) by services.BSDI.COM (8.8.7/8.8.8) id LAA03769 for tcplw-list@bsdi.com; Wed, 6 May 1998 11:12:15 -0600 (MDT)
Received: from mailfilter.bsdi.com (mailfilter.BSDI.COM [205.230.225.21]) by services.BSDI.COM (8.8.7/8.8.8) with ESMTP id LAA03765 for <tcplw@bsdi.com>; Wed, 6 May 1998 11:12:14 -0600 (MDT)
From: braden@isi.edu
Received: from zephyr.isi.edu (zephyr.isi.edu [128.9.160.160]) by mailfilter.bsdi.com (BSDI-MF 1.0) with ESMTP id KAA07819 for <tcplw@bsdi.com> env-from (braden@ISI.EDU); Wed, 6 May 1998 10:37:08 -0600 (MDT)
Received: from gra.isi.edu (gra.isi.edu [128.9.160.133]) by zephyr.isi.edu (8.8.7/8.8.6) with SMTP id JAA18068; Wed, 6 May 1998 09:38:05 -0700 (PDT)
Date: Wed, 06 May 1998 09:37:53 -0700
Posted-Date: Wed, 6 May 1998 09:37:53 -0700
Message-Id: <199805061637.AA22258@gra.isi.edu>
Received: by gra.isi.edu (5.65c/4.0.3-6) id <AA22258>; Wed, 6 May 1998 09:37:53 -0700
To: braden@isi.edu, thorpej@nas.nasa.gov
Subject: Re: Window Scale option
Cc: tcplw@bsdi.com, mathis@psc.edu

  *> 
  *> Unfortunately, there's still the concern of intermediate agents (e.g.
  *> routers, terminal servers, etc.) completely losing if they encounter
  *> non-SYN packets with options.
  *> 
Routers should not be looking at TCP anyway, but terminal servers
are probably the leading location of deficient TCP implementations.

  *> It's not too hard to find recent accounts of people having to disable
  *> timestamps because their or their ISP's terminal server or ISDN gateway
  *> can't cope with them.  (Presumably, they're looking that far into the
  *> packet because they're trying to do header compression.)
  *> 

So we should continue to be conservative in what we send.

Bob

  *> Jason R. Thorpe                                       thorpej@nas.nasa.gov
  *> NASA Ames Research Center                            Home: +1 408 866 1912
  *> NAS: M/S 258-5                                       Work: +1 650 604 0935
  *> Moffett Field, CA 94035                             Pager: +1 415 428 6939
  *>

v2.23.0 | Report a Bug | By Email