Date: Tue, 08 Jan 2008 20:42:11 -0800 From: Sam Leffler <sam@errno.com> To: Randy Bush <randy@psg.com> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: ath0 Ierrs Message-ID: <478450A3.1080507@errno.com> In-Reply-To: <47844CA7.3090704@psg.com> References: <18299.42791.826406.76763@roam.psg.com> <18302.50925.780884.908062@roam.psg.com> <4783D63A.7060502@errno.com> <47844CA7.3090704@psg.com>
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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
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