From owner-freebsd-net@FreeBSD.ORG Wed Jan 9 04:42:12 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2937B16A417 for ; Wed, 9 Jan 2008 04:42:12 +0000 (UTC) (envelope-from sam@errno.com) Received: from ebb.errno.com (ebb.errno.com [69.12.149.25]) by mx1.freebsd.org (Postfix) with ESMTP id E27A813C4D1 for ; Wed, 9 Jan 2008 04:42:11 +0000 (UTC) (envelope-from sam@errno.com) Received: from Macintosh-2.local ([10.0.0.196]) (authenticated bits=0) by ebb.errno.com (8.13.6/8.12.6) with ESMTP id m094gBuY087625 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 8 Jan 2008 20:42:11 -0800 (PST) (envelope-from sam@errno.com) Message-ID: <478450A3.1080507@errno.com> Date: Tue, 08 Jan 2008 20:42:11 -0800 From: Sam Leffler Organization: Errno Consulting User-Agent: Thunderbird 2.0.0.9 (Macintosh/20071031) MIME-Version: 1.0 To: Randy Bush References: <18299.42791.826406.76763@roam.psg.com> <18302.50925.780884.908062@roam.psg.com> <4783D63A.7060502@errno.com> <47844CA7.3090704@psg.com> In-Reply-To: <47844CA7.3090704@psg.com> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-DCC-sonic.net-Metrics: ebb.errno.com; whitelist Cc: FreeBSD Net Subject: Re: ath0 Ierrs X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Jan 2008 04:42:12 -0000 Randy Bush wrote: >>> how do i debug? >> athstats > > cool! > > # athstats -i ath0 > 21 data frames received > 54431 data frames transmit > 3 tx frames with an alternate rate > 104704 long on-chip tx retries > 22469 tx failed 'cuz too many retries > 54M current transmit rate > 35362 tx management frames > 3 tx frames discarded prior to association > 19063 tx frames with no ack marked > 17 tx frames with short preamble > 52139519 rx failed 'cuz of bad CRC -- someone else on channel? This number is huge and indicates either noise on the channel or, more likely, an issue in your card/antennna cabling. > 72800113 rx failed 'cuz of PHY err -- ?? > 23844342 OFDM timing > 48951732 CCK timing > 4039 CCK restart These are likely the same issue. > 3575252 beacons transmitted > 12228 periodic calibrations > 2 rfgain value change > 20 rssi of last ack > 9 avg recv rssi > -96 rx noise floor > 2 cabq frames transmitted > 83 switched default/rx antenna > Antenna profile: > [1] tx 21603 rx 422493 > [2] tx 10360 rx 12 > > i did check the other day, and ath0 was on chan 11 and nearest was 6. > bit things go up and down a lot here in the center of tokyo. though the > others are all weak signals, and encrypted. > > next whack with clue bat, please? I'd check physical setup and/or look for noise in your environment (is there a disk in this machine?) Basically isolate potential noise sources to rule out external causes. With zero info to go on everything is a guess. Sam