... oh this is kind of strange. Hm, it's interesting that it's delaying that much; I wonder if the air is really busy and the transmitter just can't squeeze a frame out into the air.
How close is it? What's the RSSI? adrian On 8 January 2013 15:50, Andrew <and...@ugh.net.au> wrote: > Hi, > > I just installed a TP-Link TL-WN851ND PCI wireless card into my 9.1-STABLE > (r244942) box. It shows up in dmesg as Atheros 9287 mac 384.2 RF5133. > > I am running it in hostap mode, 11g. Things seem to work OK but there are > occasionally stalls in traffic across the network. e.g. > > PING 10.0.0.1 (10.0.0.1): 56 data bytes > 64 bytes from 10.0.0.1: icmp_seq=0 ttl=64 time=13.134 ms > 64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=77.776 ms > 64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=246.675 ms > Request timeout for icmp_seq 3 > 64 bytes from 10.0.0.1: icmp_seq=3 ttl=64 time=1037.327 ms > 64 bytes from 10.0.0.1: icmp_seq=4 ttl=64 time=37.481 ms > > --- 10.0.0.1 ping statistics --- > 5 packets transmitted, 5 packets received, 0.0% packet loss > round-trip min/avg/max/stddev = 13.134/282.479/1037.327/386.148 ms > > I was wondering how I would go about debugging the issue? > > I have been playing with wlandebug and I can see that the client I am testing > with (though it doesn't appear to be client specific) is listed as going in > and out of PS mode once or twice a second. Not sure that that is a problem. > Using "wlandebug rate" I see: > > Jan 9 00:45:25 sanna kernel: wlan0: [00:17:f2:e9:04:b0] > ath_rate_tx_complete: size 1600 (1167 bytes) OK rate/try 48 Mb /0/1 > Jan 9 00:45:25 sanna kernel: wlan0: [00:17:f2:e9:04:b0] > ath_rate_tx_complete: size 1600 (1554 bytes) OK rate/try 48 Mb /0/1 > Jan 9 00:45:25 sanna kernel: wlan0: [00:17:f2:e9:04:b0] > ath_rate_tx_complete: size 1600 (1554 bytes) OK rate/try 48 Mb /0/1 > Jan 9 00:45:25 sanna kernel: wlan0: [7c:c5:37:6d:4c:7e] > ath_rate_tx_complete: size 250 (30 bytes) FAIL rate/try 1 Mb /0/7 > Jan 9 00:45:25 sanna kernel: wlan0: [00:17:f2:e9:04:b0] > ath_rate_tx_complete: size 250 (106 bytes) OK rate/try 11 Mb /0/1 > Jan 9 00:45:25 sanna kernel: wlan0: [00:17:f2:e9:04:b0] > ath_rate_tx_complete: size 250 (122 bytes) OK rate/try 11 Mb /0/1 > Jan 9 00:45:26 sanna kernel: wlan0: [00:17:f2:e9:04:b0] > ath_rate_tx_complete: size 250 (138 bytes) OK rate/try 11 Mb /0/1 > Jan 9 00:45:26 sanna kernel: wlan0: [00:23:14:98:15:b4] ath_rate_findrate: > size 250 switch rate 48 (1129/690) -> 54 (736/682) after 2 packets mrr 0 > Jan 9 00:45:26 sanna kernel: wlan0: [64:70:02:f0:c8:03] > ath_rate_tx_complete: size 250 FAIL rate/try 0/5 no rates yet > Jan 9 00:45:26 sanna kernel: wlan0: [00:17:f2:e9:04:b0] > ath_rate_tx_complete: size 250 (94 bytes) OK rate/try 11 Mb /0/1 > Jan 9 00:45:26 sanna last message repeated 2 times > Jan 9 00:45:26 sanna kernel: wlan0: [00:23:14:98:15:b4] > ath_rate_tx_complete: size 250 (163 bytes) OK rate/try 54 Mb /0/2 > Jan 9 00:45:26 sanna kernel: wlan0: [00:17:f2:e9:04:b0] > ath_rate_tx_complete: size 250 (137 bytes) OK rate/try 11 Mb /0/1 > > Given the proximity of the clients and the FreeBSD box I would have expected > it to not have had any trouble maintaing a high connection rate - but perhaps > this is a symptom of the stalls. > > Can anyone suggest where to go from here? > > Thanks, > > Andrew > _______________________________________________ > freebsd-wireless@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-wireless > To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org" _______________________________________________ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"
