IETF Logo Mail Archive

Re: [ledbat] list of reasons for needing multiple TCP connections

Richard Bennett <richard@bennett.com> Thu, 27 November 2008 23:06 UTC

Return-Path: <ledbat-bounces@ietf.org>
X-Original-To: tana-archive@ietf.org
Delivered-To: ietfarch-tana-archive@core3.amsl.com
Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id B10333A6A71; Thu, 27 Nov 2008 15:06:35 -0800 (PST)
X-Original-To: ledbat@core3.amsl.com
Delivered-To: ledbat@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 939CE3A6A71 for <ledbat@core3.amsl.com>; Thu, 27 Nov 2008 15:06:34 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: 1.607
X-Spam-Level: *
X-Spam-Status: No, score=1.607 tagged_above=-999 required=5 tests=[BAYES_40=-0.185, HTML_MESSAGE=0.001, IP_NOT_FRIENDLY=0.334, MIME_HTML_ONLY=1.457]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id p63zDSP6zG-p for <ledbat@core3.amsl.com>; Thu, 27 Nov 2008 15:06:33 -0800 (PST)
Received: from outbound-mail-112.bluehost.com (outbound-mail-112.bluehost.com [69.89.24.2]) by core3.amsl.com (Postfix) with SMTP id D9EF13A6809 for <ledbat@ietf.org>; Thu, 27 Nov 2008 15:06:33 -0800 (PST)
Received: (qmail 11329 invoked by uid 0); 27 Nov 2008 23:06:28 -0000
Received: from unknown (HELO host46.hostmonster.com) (74.220.202.46) by outboundproxy3.bluehost.com with SMTP; 27 Nov 2008 23:06:28 -0000
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=bennett.com; h=Received:Message-ID:Date:From:User-Agent:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding:X-Identified-User; b=FFKbKc8D4xhNs4CgqIOyZl9+XWowYuKlpL/haY9E8md9c1vL+3Jk8QXyFaP4xn58xEZkeyKuL/BuTt8U7zOmwKDWNMmuhfo8pWAgHwRnSTqCdJ0OjaT+I3YUAixaV3Ko;
Received: from c-24-5-203-48.hsd1.ca.comcast.net ([24.5.203.48] helo=[192.168.1.101]) by host46.hostmonster.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from <richard@bennett.com>) id 1L5pwK-0004nf-36; Thu, 27 Nov 2008 16:06:28 -0700
Message-ID: <492F27F3.3020309@bennett.com>
Date: Thu, 27 Nov 2008 15:06:27 -0800
From: Richard Bennett <richard@bennett.com>
User-Agent: Thunderbird 2.0.0.18 (Windows/20081105)
MIME-Version: 1.0
To: Lars Eggert <lars.eggert@nokia.com>
References: <4925BDEE.6090101@isi.edu> <8c99930d0811201206yb0ef259v28c361438cb14773@mail.gmail.com> <DC2CEB0C-4C70-42CD-8ADE-AFF4E45B1915@shlang.com> <C3E8A5B2-16BE-47FD-9DD9-5AFCBA6BEBED@nokia.com>
In-Reply-To: <C3E8A5B2-16BE-47FD-9DD9-5AFCBA6BEBED@nokia.com>
X-Identified-User: {842:host46.hostmonster.com:bennett1:bennett.com} {sentby:smtp auth 24.5.203.48 authed with richard@bennett.com}
Cc: "ledbat@ietf.org" <ledbat@ietf.org>
Subject: Re: [ledbat] list of reasons for needing multiple TCP connections
X-BeenThere: ledbat@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Mailing list of the LEDBAT WG <ledbat.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/ledbat>, <mailto:ledbat-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/pipermail/ledbat>
List-Post: <mailto:ledbat@ietf.org>
List-Help: <mailto:ledbat-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ledbat>, <mailto:ledbat-request@ietf.org?subject=subscribe>
Content-Type: multipart/mixed; boundary="===============0425094090=="
Sender: ledbat-bounces@ietf.org
Errors-To: ledbat-bounces@ietf.org

Most home "routers" have all been modified by now not to crash when BitTorrent has opened thousands of TCP connections. These connections consume mapping table resources and were a problem until it they were garbage-collected.

RB

Lars Eggert wrote:
On 2008-11-25, at 1:28, Stanislav Shalunov wrote:
Home NATs
("routers") don't generally crash when you run BitTorrent.  The
"mostly idle" part doesn't matter for state consumption, naturally.

Thousands and tens of thousands of connections (UDP state counts) is
another matter.

Yes. As a datapoint, my home NAT reboots when I nmap through it, but has no issue with BitTorrent.

Lars

_______________________________________________
ledbat mailing list
ledbat@ietf.org
https://www.ietf.org/mailman/listinfo/ledbat" rel="nofollow">https://www.ietf.org/mailman/listinfo/ledbat
  
_______________________________________________
ledbat mailing list
ledbat@ietf.org
https://www.ietf.org/mailman/listinfo/ledbat

v2.23.0 | Report a Bug | By Email