From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from uplift.swm.pp.se (swm.pp.se [212.247.200.143]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 9BC1B3B2A4 for ; Tue, 27 Aug 2019 03:02:10 -0400 (EDT) Received: by uplift.swm.pp.se (Postfix, from userid 501) id 503D6B1; Tue, 27 Aug 2019 09:02:09 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=swm.pp.se; s=mail; t=1566889329; bh=CVnP7kZL/Yq3D8R+AwL8cL1YnmOTEDPQjBUMEo/LuGs=; h=Date:From:To:cc:Subject:In-Reply-To:References:From; b=RJCHpZqFG+zVyXvJ3NKGMqrlR/t2WiaroribRKuPyQhNkHMuTSC714dY9ienMIzRj MZ5DUInrYD/Az/2WTvsyYGeL/o6x2P6za5BwUSAMcPUqHZYN1fSna0uXgPQEWjDZkZ y6u8krEub/XmtJa0Qx9zda0DXp01rWpqwUlO8cFo= Received: from localhost (localhost [127.0.0.1]) by uplift.swm.pp.se (Postfix) with ESMTP id 4D3C3B0; Tue, 27 Aug 2019 09:02:09 +0200 (CEST) Date: Tue, 27 Aug 2019 09:02:09 +0200 (CEST) From: Mikael Abrahamsson To: Michael Welzl cc: Dave Taht , ECN-Sane In-Reply-To: <4471314E-BACE-4EEA-B954-9795833764E3@ifi.uio.no> Message-ID: References: <4471314E-BACE-4EEA-B954-9795833764E3@ifi.uio.no> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) Organization: People's Front Against WWW MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Subject: Re: [Ecn-sane] osx ecn X-BeenThere: ecn-sane@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussion of explicit congestion notification's impact on the Internet List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Aug 2019 07:02:10 -0000 On Tue, 27 Aug 2019, Michael Welzl wrote: > run it as root - strange, yes, but then the output is very different. Thanks, indeed. $ sudo netstat -sp tcp | egrep 'CE|EC' 11097 client connections attempted to negotiate ECN 4864 client connections successfully negotiated ECN 3800 times graceful fallback to Non-ECN connection 467 times lost ECN negotiating SYN, followed by retransmission 52 server connections attempted to negotiate ECN 52 server connections successfully negotiated ECN 0 time lost ECN negotiating SYN-ACK, followed by retransmission 427 times received congestion experienced (CE) notification 0 time CWR was sent in response to ECE 6111 times sent ECE notification 15 connections received CE atleast once 0 connection received ECE atleast once 267 connections using ECN have seen packet loss but no CE 1 connection using ECN have seen packet loss and CE 14 connections using ECN received CE but no packet loss 14 connections fell back to non-ECN due to SYN-loss 1 connection fell back to non-ECN due to reordering 0 connection fell back to non-ECN due to excessive CE-markings -- Mikael Abrahamsson email: swmike@swm.pp.se