11n in adhoc mode

[Johann Hugo]

On Wednesday, December 12, 2012 01:58:38 AM Adrian Chadd wrote:
> Here's what I have trimmed this down to so far:
> 
> http://people.freebsd.org/~adrian/ath/20121212-11n-ibss-and-other-stuff-3.di
> ff
> 
> Please disable ampdu for now (ifconfig wlanX -ampdu) as it just plain
> doesn't work.
> I'll figure out why once I figure out the cleanest way to get this 11n
> IBSS stuff working.
> 
> I've tested this between two 11n nodes and a third 11a only node.
> So far it works out ok. But it obviously could do with a lot more
> thorough testing.
> 
> I'd appreciate feedback!
> 

No luck. Maybe I'm missing some settings ?

mesh-2870:~ # uname -a
FreeBSD mesh-2870 10.0-CURRENT FreeBSD 10.0-CURRENT #15: Wed Dec 12 11:38:06

rc.conf
create_args_wlan1="wlanmode adhoc country ZA"
ifconfig_wlan1="10.50.50.2/24 ssid testADHOC channel 28:ht/40 -ampdu bssid 
02:8c:ca:fe:ca:10"

mesh-2870:~ # ifconfig wlan1
wlan1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 00:0c:42:6c:63:20
        inet 10.50.50.2 netmask 0xffffff00 broadcast 10.50.50.255 
        inet6 fe80::20c:42ff:fe6c:6320%wlan1 prefixlen 64 scopeid 0x8 
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        media: IEEE 802.11 Wireless Ethernet autoselect mode 11na <adhoc>
        status: running
        ssid testADHOC channel 28 (5140 MHz 11a ht/40-) bssid 
02:8c:ca:fe:ca:10
        regdomain NONE country ZA ecm authmode OPEN privacy OFF txpower 17
        mcastrate 6 mgmtrate 6 scanvalid 60 -ampdu ampdulimit 8k
        ampdudensity 8 shortgi wme burst

mesh-2870:~ # ifconfig wlan1 list chan
Channel   1 : 2412  MHz 11g ht       Channel  52 : 5260* MHz 11a ht       
Channel   2 : 2417  MHz 11g ht       Channel  56 : 5280* MHz 11a ht       
Channel   3 : 2422  MHz 11g ht       Channel  60 : 5300* MHz 11a ht       
Channel   4 : 2427  MHz 11g ht       Channel  64 : 5320* MHz 11a ht       
Channel   5 : 2432  MHz 11g ht       Channel 100 : 5500* MHz 11a ht       
Channel   6 : 2437  MHz 11g ht       Channel 104 : 5520* MHz 11a ht       
Channel   7 : 2442  MHz 11g ht       Channel 108 : 5540* MHz 11a ht       
Channel   8 : 2447  MHz 11g ht       Channel 112 : 5560* MHz 11a ht       
Channel   9 : 2452  MHz 11g ht       Channel 116 : 5580* MHz 11a ht       
Channel  10 : 2457  MHz 11g ht       Channel 120 : 5600* MHz 11a ht       
Channel  11 : 2462  MHz 11g ht       Channel 124 : 5620* MHz 11a ht       
Channel  12 : 2467* MHz 11g ht       Channel 128 : 5640* MHz 11a ht       
Channel  13 : 2472* MHz 11g ht       Channel 132 : 5660* MHz 11a ht       
Channel  24 : 5120* MHz 11a ht       Channel 136 : 5680* MHz 11a ht       
Channel  28 : 5140* MHz 11a ht       Channel 140 : 5700* MHz 11a ht       
Channel  32 : 5160* MHz 11a ht       Channel 149 : 5745* MHz 11a ht       
Channel  36 : 5180* MHz 11a ht       Channel 153 : 5765* MHz 11a ht       
Channel  40 : 5200* MHz 11a ht       Channel 157 : 5785* MHz 11a ht       
Channel  44 : 5220* MHz 11a ht       Channel 161 : 5805* MHz 11a ht       
Channel  48 : 5240* MHz 11a ht       Channel 165 : 5825* MHz 11a ht

mesh-2870:~ # ifconfig wlan1 list sta
ADDR               AID CHAN RATE RSSI IDLE  TXSEQ  RXSEQ CAPS FLAG   
00:0c:42:6c:63:20    0   28   0M 18.0  300     21      0 I    A      
00:0c:42:6c:61:91    0   28  54M 17.5    0    122   1552 I    AQ      HTCAP 
WME

mesh-2870:~ # athratestats -i ath1 -m 00:0c:42:6c:61:91
static_rix (-1) ratemask 0x0
[ 250] cur rate 54  Mb since switch: packets 1 ticks 142385
[ 250] last sample (6  Mb) cur sample (0 ) packets sent 122
[ 250] packets since sample 1 sample tt 0

[1600] cur rate 54  Mb since switch: packets 1 ticks 93578
[1600] last sample (6  Mb) cur sample (0 ) packets sent 3
[1600] packets since sample 3 sample tt 0

   TX Rate     TXTOTAL:TXOK       EWMA          T/   F     avg last xmit
[36  Mb: 250]        1:1        (100.0%)        1/   0   464uS 6977
[36  Mb:1600]        1:1        (100.0%)        1/   0   764uS 93021
[54  Mb: 250]      121:121      (100.0%)      121/   0   444uS 142385
[54  Mb:1600]        2:2        (100.0%)        2/   0   644uS 93578

Johann