From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sandelman.ca (relay.cooperix.net [67.23.6.41]) by huchra.bufferbloat.net (Postfix) with ESMTP id D2E9E21F0EA; Wed, 10 Oct 2012 16:27:16 -0700 (PDT) Received: from sandelman.ca (unknown [75.98.19.133]) by relay.sandelman.ca (Postfix) with ESMTPS id D2C9381AA; Wed, 10 Oct 2012 19:20:11 -0400 (EDT) Received: from sandelman.ca (quigon.sandelman.ca [127.0.0.1]) by sandelman.ca (Postfix) with ESMTP id 84239CA0BC; Wed, 10 Oct 2012 19:27:11 -0400 (EDT) To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= In-reply-to: <87mwzvphf1.fsf@toke.dk> References: <87d30rra1s.fsf@toke.dk> <507454AA.9060206@hp.com> <87mwzvphf1.fsf@toke.dk> Comments: In-reply-to =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= message dated "Tue, 09 Oct 2012 21:35:46 +0200." X-Mailer: MH-E 8.3; nmh 1.3; XEmacs 21.4 (patch 22) Date: Wed, 10 Oct 2012 19:27:11 -0400 Message-ID: <25234.1349911631@sandelman.ca> From: Michael Richardson Cc: codel@lists.bufferbloat.net, bloat@lists.bufferbloat.net Subject: Re: [Bloat] [Codel] better testing, linux 3.6.1, cerowrt credits, other stuff X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Oct 2012 23:27:17 -0000 >> But: It became obvious fast that long RTT tests were needed, >> which I've been trying to establish the infrastructure to do toke> I assume that by "infrastructure" you mean "(netperf) servers toke> far away"? What would be needed for a test server in terms of toke> resources (bandwidth and otherwise)? I could try and persuade toke> my university to let me setup a test server on their network toke> (which is in Denmark)... I interpret the question to mean networks where is there significant actual delay along them. I seem to recall that there are some ways to do this Linux machines, but most commercial test equipment can simulate things, including dropping packets. I think, however, that we do not want/need and packets dropped, as then the bandwidth constraint would not be in the device under test. -- Michael Richardson -on the road-