9.x doesn't implement 11n aggregation transmission. It only supports
11n MCS rate transmission (with no aggregation) and 11n RX with MCS
If you update to -HEAD you should see the performance increase.
On 1 April 2013 15:10, Gleb Romanov <groma...@hellok.org> wrote:
> I have a question about 802.11n performance for AR9280 ( my card is Ubiquiti
> SR71E ) in hostap mode. To measure performance, I'm looking at the download
> speeds from my file server (Samba) through a FreeBSD AP to a laptop with
> Centrino 6300 (agn 3x3:3).
> I see 3-4 MBytes/s on the 2.4 GHz band (using ht/20 or ht/40 - doesn't
> matter) and around 5-6 MB/s on the 5 GHz band (ht/40).
> The laptop is running Win 7 and can do 8-9 MB/s with a commercial AP (2.4 GHz
> ht/20 2x2:2)
> I run 9.1-RELEASE GENERIC and the question is this is the expected
> performance (from 9.1 RELEASE ) or I'm just doing something wrong? May be bad
> antennas or wires?
> If it is expected and I need to switch to HEAD to do better, can I only
> update the "ATH_module_releated_stuff" and leave the rest of the base
> Any comments would be helpful!
> Here is some info about the system:
> Right now it is configured for 2.4 GHz simply because of the range. With 5
> GHz I need to in the same room with the AP to get the speeds I mentioned.
> uname -a
> FreeBSD fwall 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 09:23:10
> UTC 2012 r...@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
> pciconf -lv
> ath0@pci0:3:0:0: class=0x028000 card=0x4e050777 chip=0x002a168c
> rev=0x01 hdr=0x00
> vendor = 'Atheros Communications Inc.'
> device = 'AR928X Wireless Network Adapter (PCI-Express)'
> class = network
> create_args_wlan0="wlanmode hostap"
> ifconfig_wlan0="apbridge mode 11ng ht channel 3:ht/40"
> hostapd_enable="YES" #for wlan0
> hostapd_program="/usr/local/sbin/hostapd" #run from port instead of base
> wlan0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0
> mtu 1500
> ether 00:15:6d:85:25:13
> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> media: IEEE 802.11 Wireless Ethernet autoselect mode 11ng <hostap>
> status: running
> ssid badaboom-n channel 3 (2422 MHz 11g ht/40+) bssid
> country US ecm authmode WPA2/802.11i privacy MIXED deftxkey 2
> AES-CCM 2:128-bit AES-CCM 3:128-bit txpower 27 scanvalid 60
> protmode CTS -htcompat -ampdu ampdulimit 64k ampdudensity 8 -amsdu
> smps wme burst dtimperiod 1 -dfs
> (Here I used all available options. I don't see any difference between using
> the line and commenting it out. Huh?)
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