Ath - clients with weak signals not working after upgrade to FreeBSD 11.0
Johann Hugo
jhugo at meraka.csir.co.za
Thu Jul 31 21:19:12 UTC 2014
On Thursday 31 July 2014 13:43:34 Adrian Chadd wrote:
> I think the idle counter there is the receive idle counter. Ie, it's
> not hearing frames from them.
>
> See if you can figure out what frames it isn't hearing.
tcpdump for the last couple of minutes.
mesh-6c9a:~ # tcpdump -i wlan1 -n -e -y IEEE802_11_RADIO | grep
00:21:a4:35:83:1b
tcpdump: data link type IEEE802_11_RADIO
tcpdump: WARNING: wlan1: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on wlan1, link-type IEEE802_11_RADIO (802.11 plus radiotap header),
capture size 65535 bytes
23:24:45.046188 16985251046258410120us tsft short preamble 6.0 Mb/s -82dB
signal -96dB noise antenna 1 5520 MHz 11a BSSID:02:8c:ca:fe:ca:05
DA:ff:ff:ff:ff:ff:ff SA:00:21:a4:35:83:1b Beacon (mesh05) [6.0* 9.0 12.0* 18.0
24.0* 36.0 48.0 54.0 Mbit] IBSS CH: 104
23:27:14.360001 16985251046409245942us tsft short preamble 6.0 Mb/s -84dB
signal -96dB noise antenna 1 5520 MHz 11a BSSID:02:8c:ca:fe:ca:05
DA:ff:ff:ff:ff:ff:ff SA:00:21:a4:35:83:1b Beacon (mesh05) [6.0* 9.0 12.0* 18.0
24.0* 36.0 48.0 54.0 Mbit] IBSS CH: 104
23:31:40.129098 16985251046677723213us tsft short preamble 6.0 Mb/s 54dBm tx
power antenna 1 5520 MHz 11a CF +QoS DA:00:21:a4:35:83:1b SA:00:21:a4:35:6c:a9
BSSID:02:8c:ca:fe:ca:05
23:31:55.139074 16985251046692886125us tsft short preamble 6.0 Mb/s 54dBm tx
power antenna 1 5520 MHz 11a CF +QoS DA:00:21:a4:35:83:1b SA:00:21:a4:35:6c:a9
BSSID:02:8c:ca:fe:ca:05
23:34:37.437525 16985251046856837656us tsft short preamble 6.0 Mb/s -83dB
signal -96dB noise antenna 1 5520 MHz 11a BSSID:02:8c:ca:fe:ca:05
DA:ff:ff:ff:ff:ff:ff SA:00:21:a4:35:83:1b Beacon (mesh05) [6.0* 9.0 12.0* 18.0
24.0* 36.0 48.0 54.0 Mbit] IBSS CH: 104
23:35:31.060875 16985251046911007901us tsft short preamble 6.0 Mb/s -83dB
signal -96dB noise antenna 1 5520 MHz 11a BSSID:02:8c:ca:fe:ca:05
DA:ff:ff:ff:ff:ff:ff SA:00:21:a4:35:83:1b Beacon (mesh05) [6.0* 9.0 12.0* 18.0
24.0* 36.0 48.0 54.0 Mbit] IBSS CH: 104
23:35:42.921206 16985251046922989068us tsft short preamble 6.0 Mb/s -83dB
signal -96dB noise antenna 1 5520 MHz 11a BSSID:02:8c:ca:fe:ca:05
DA:ff:ff:ff:ff:ff:ff SA:00:21:a4:35:83:1b Beacon (mesh05) [6.0* 9.0 12.0* 18.0
24.0* 36.0 48.0 54.0 Mbit] IBSS CH: 104
mesh-6c9a:~ # athstats -i ath1
13114 data frames received
1021 data frames transmit
75 long on-chip tx retries
9 tx failed 'cuz too many retries
54M current transmit rate
1 watchdog timeouts
925 tx frames with no ack marked
21 rx failed 'cuz of bad CRC
39 periodic calibrations
-0/+0 TDMA slot adjust (usecs, smoothed)
43 rssi of last ack
44 avg recv rssi
-96 rx noise floor
30 tx frames through raw api
6 spur immunity level
1 OFDM weak signal detect
220 listen time
6 ANI increased spur immunity
4 ANI disabled OFDM weak signal detect
4 ANI disabled CCK weak signal threshold
426767 cumulative OFDM phy error count
24 ANI forced listen time to zero
75 missing ACK's
60 bad FCS
11323 beacons received
44 average rssi (beacons only)
Antenna profile:
[0] tx 1012 rx 0
[1] tx 0 rx 13114
>
> The RSSI's look fine. So there's likely something else odd going on
>
>
> -a
>
>
> On 31 July 2014 13:00, Johann Hugo <jhugo at meraka.csir.co.za> wrote:
> > Hi
> >
> > After an upgrade from FreeBSD 9.0 to 11.0 I'm losing comms to some of the
wifi
> > clients that worked when I was using FreeBSD 9.0 (long distance links in
mesh)
> >
> > On CURRENT the devices are still showing with list sta, but the idle
counter
> > keeps growing + no comms to them.
> >
> >
> > FreeBSD 9.0-STABLE
> >
> > mesh-6c9a:~ # ifconfig wlan1 list sta
> > ADDR AID CHAN RATE RSSI IDLE TXSEQ RXSEQ CAPS FLAG
> > 00:21:a4:35:6c:a9 0 104 0M 9.5 0 421 60496 I A
> > 00:21:a4:35:6c:96 0 104 54M 21.0 0 98 10496 I AQ WME
> > 00:21:a4:35:83:38 0 104 6M 6.5 0 28 448 I AQ WME
> > 00:21:a4:35:83:1b 0 104 9M 8.0 0 4680 37056 I AQ WME
> > 00:80:48:62:e1:0f 0 104 6M 9.5 0 50 47136 I AQ WME
> >
> >
> > FreeBSD 11.0-CURRENT
> >
> > mesh-6c9a:~ # ifconfig wlan1 list sta
> > ADDR AID CHAN RATE RSSI IDLE TXSEQ RXSEQ CAPS FLAG
> > 00:21:a4:35:6c:a9 0 104 0M 13.5 0 142 38384 I A
> > 00:21:a4:35:6c:96 0 104 54M 22.0 0 11 18048 I AQ WME
> > 00:21:a4:35:83:1b 0 104 6M 8.0 60 0 0 I AQ WME
> > 00:80:48:62:e1:0f 0 104 6M 11.5 30 0 41248 A
> > 00:21:a4:35:83:38 0 104 6M 7.0 60 0 0 I AQ WME
> >
> >
> >
----------------------------------------------------------------------------
> > FreeBSD 9.0-STABLE
> >
> > mesh-6c9a:~ # uname -a
> > FreeBSD mesh-6c9a 9.0-STABLE FreeBSD 9.0-STABLE #1 r229528:231308: Wed Nov
27
> > 12:21:54 SAST 2013 root at magrathea.meraka.csir.co.za:/scratch/9-stable-
> > old/obj/arm.armeb/var/scratch/9-stable-old/src/sys/SMALL-CAMBRIA arm
> >
> > dmesg
> > ath1: <Atheros 9280> irq 27 at device 2.0 on pci0
> > [ath] enabling AN_TOP2_FIXUP
> > ath1: AR9280 mac 128.2 RF5133 phy 13.0
> >
> > mesh-6c9a:~ # ifconfig -v wlan1
> > wlan1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
> > ether 00:21:a4:35:6c:a9
> > inet6 fe80::221:a4ff:fe35:6ca9%wlan1 prefixlen 64 scopeid 0xb
> > inet6 fd35:ac5b:b116:10:221:a4ff:fe35:6ca9 prefixlen 64
> > nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> > media: IEEE 802.11 Wireless Ethernet autoselect mode 11a <adhoc>
> > status: running
> > ssid mesh05 channel 104 (5520 MHz 11a) bssid 02:8c:ca:fe:ca:05
> > regdomain NONE country ZA anywhere ecm authmode OPEN -wps -tsn
> > privacy OFF deftxkey UNDEF powersavemode OFF powersavesleep 100
> > txpower 27 txpowmax 50.0 -dotd rtsthreshold 2346 fragthreshold
2346
> > bmiss 7
> > 11a ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
> > 11b ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
> > 11g ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
> > turboA ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
> > turboG ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
> > sturbo ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
> > 11na ucast NONE mgmt 12 MCS mcast 12 MCS maxretry 6
> > 11ng ucast NONE mgmt 2 MCS mcast 2 MCS maxretry 6
> > half ucast NONE mgmt 3 Mb/s mcast 3 Mb/s maxretry 6
> > quarter ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
> > scanvalid 60 -bgscan bgscanintvl 300 bgscanidle 250
> > roam:11a rssi 7dBm rate 12 Mb/s
> > roam:11b rssi 7dBm rate 1 Mb/s
> > roam:11g rssi 7dBm rate 5 Mb/s
> > roam:turboA rssi 7dBm rate 12 Mb/s
> > roam:turboG rssi 7dBm rate 12 Mb/s
> > roam:sturbo rssi 7dBm rate 12 Mb/s
> > roam:11na rssi 7dBm MCS 1
> > roam:11ng rssi 7dBm MCS 1
> > roam:half rssi 7dBm rate 6 Mb/s
> > roam:quarter rssi 7dBm rate 3 Mb/s
> > -pureg protmode CTS -ht -htcompat -ampdu ampdulimit 8k
ampdudensity 8
> > -amsdu -shortgi htprotmode RTSCTS -puren smps -rifs wme burst -
dwds
> > roaming AUTO bintval 100
> > AC_BE cwmin 4 cwmax 10 aifs 3 txopLimit 0 -acm ack
> > cwmin 4 cwmax 10 aifs 3 txopLimit 0 -acm
> > AC_BK cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm ack
> > cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm
> > AC_VI cwmin 3 cwmax 4 aifs 2 txopLimit 94 -acm ack
> > cwmin 3 cwmax 4 aifs 2 txopLimit 94 -acm
> > AC_VO cwmin 2 cwmax 3 aifs 2 txopLimit 47 -acm ack
> > cwmin 2 cwmax 3 aifs 2 txopLimit 47 -acm
> > groups: wlan
> >
> >
-------------------------------------------------------------------------------
> > FreeBSD 11.0
> >
> > dmesg
> > ath1: <Atheros 9220> irq 27 at device 2.0 on pci0
> > [ath] enabling AN_TOP2_FIXUP
> > ath1: AR9220 mac 128.2 RF5133 phy 13.0
> > ath1: 2GHz radio: 0x0000; 5GHz radio: 0x00c0
> >
> >
> > mesh-6c9a:~ # uname -a
> > FreeBSD mesh-6c9a 11.0-CURRENT FreeBSD 11.0-CURRENT #1 r269182M: Mon Jul
28
> > 14:51:06 SAST 2014 root at magrathea.meraka.csir.co.za:/var/scratch/11-
> > current/obj/arm.armeb/var/scratch/11-current/src/sys/SMALL-CAMBRIA arm
> >
> > mesh-6c9a:~ # ifconfig -v wlan1
> > wlan1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
> > ether 00:21:a4:35:6c:a9
> > inet6 fe80::221:a4ff:fe35:6ca9%wlan1 prefixlen 64 scopeid 0x8
> > inet6 fd35:ac5b:b116:10:221:a4ff:fe35:6ca9 prefixlen 64
> > groups: wlan
> > ssid mesh05 channel 104 (5520 MHz 11a) bssid 02:8c:ca:fe:ca:05
> > regdomain NONE country ZA anywhere ecm authmode OPEN -wps -tsn
> > privacy OFF deftxkey UNDEF powersavemode OFF powersavesleep 100
> > txpower 27 txpowmax 50.0 -dotd rtsthreshold 2346 fragthreshold
2346
> > bmiss 7
> > 11a ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
> > 11b ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
> > 11g ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
> > turboA ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
> > turboG ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
> > sturbo ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6
> > 11na ucast NONE mgmt 12 MCS mcast 12 MCS maxretry 6
> > 11ng ucast NONE mgmt 2 MCS mcast 2 MCS maxretry 6
> > half ucast NONE mgmt 3 Mb/s mcast 3 Mb/s maxretry 6
> > quarter ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6
> > scanvalid 60 -bgscan bgscanintvl 300 bgscanidle 250
> > roam:11a rssi 7dBm rate 12 Mb/s
> > roam:11b rssi 7dBm rate 1 Mb/s
> > roam:11g rssi 7dBm rate 5 Mb/s
> > roam:turboA rssi 7dBm rate 12 Mb/s
> > roam:turboG rssi 7dBm rate 12 Mb/s
> > roam:sturbo rssi 7dBm rate 12 Mb/s
> > roam:11na rssi 7dBm MCS 1
> > roam:11ng rssi 7dBm MCS 1
> > roam:half rssi 7dBm rate 6 Mb/s
> > roam:quarter rssi 7dBm rate 3 Mb/s
> > -pureg protmode CTS -ht -htcompat -ampdu ampdulimit 8k
ampdudensity 8
> > -amsdu -shortgi htprotmode RTSCTS -puren smps -rifs wme burst -
dwds
> > roaming AUTO bintval 100
> > AC_BE cwmin 4 cwmax 10 aifs 3 txopLimit 0 -acm ack
> > cwmin 4 cwmax 10 aifs 3 txopLimit 0 -acm
> > AC_BK cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm ack
> > cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm
> > AC_VI cwmin 3 cwmax 4 aifs 2 txopLimit 94 -acm ack
> > cwmin 3 cwmax 4 aifs 2 txopLimit 94 -acm
> > AC_VO cwmin 2 cwmax 3 aifs 2 txopLimit 47 -acm ack
> > cwmin 2 cwmax 3 aifs 2 txopLimit 47 -acm
> > media: IEEE 802.11 Wireless Ethernet autoselect mode 11a <adhoc>
> > status: running
> > nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> >
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