PIROVANO


1 Alix OpenBSD 4.5
3.3 Wireless Access-Point


Note
ath0 at pci0 dev 12 function 0 "Atheros AR5413" rev 0x01: irq 9
ath0: AR5413 10.5 phy 6.1 rf 6.3, FCC2A*, address 00:0b:6b:2f:a3:c0
(Wistron dcma-82 802.11a/b/g)
11a fails9 (shows up on client, NO ip transfer, a very few pings responding (on certain channels))
11b OK9 (8+ days) Signal1 excellent
11g n/a

ath0 at pci0 dev 12 function 0 "Atheros AR5212" rev 0x01: irq 9
ath0: AR5213A 5.9 phy 4.3 rf5112a 3.6, FCC2A*, address 00:0b:6b:df:52:8a
(Wistron CM9 802.11a/b/g)
11a OK9 (2.5 days 2010-08-05) Signal1 good
11b testing9 Signal1 good
11g n/a

ath0 at pci0 dev 12 function 0 "Atheros AR5211" rev 0x01: irq 9
ath0: AR5211 4.2 phy 3.0 rf5111 1.7, WOR1W, address 00:05:4e:40:3c:f5
(IBM Thinkpad 802.11a/b Mini PCI Wireless Card FRU: 91P7263)
11a testing Signal1 good
11b testing Signal1 good

ath0 at pci0 dev 12 function 0 "Atheros AR5212 (IBM MiniPCI)" rev 0x01: irq 9
ath0: AR5213 5.6 phy 4.1 rf5111 1.7 rf2111 2.3, WOR1W, address 00:05:4e:48:7f:b5
(IBM Thinkpad 802.11a/b/g Mini PCI Wireless Card FRU: 91P7301)
11a fails (unstable, same as above)
11a testing9 Signal1 good
11b testing Signal1 good
11g n/a

ral0 at pci0 dev 12 function 0 "Ralink RT2560" rev 0x01: irq 9, address 00:11:09:0b:31:c3
ral0: MAC/BBP RT2560 (rev 0x04), RF RT2525
(MSI MS-6833 802.11b/g)
11b/g OK (60+ days) Signal1 excellent

ral0 at pci0 dev 12 function 0 "Ralink RT2560" rev 0x01: irq 9, address 00:10:60:64:c4:6a
ral0: MAC/BBP RT2560 (rev 0x04), RF RT2525
(Billionton MIWLGRL 802.11b/g)
11b/g testing Signal1 moderate10

ral0 at pci0 dev 12 function 0 "Ralink RT2561S" rev 0x00: irq 9, address 00:14:85:d3:7b:05
ral0: MAC/BBP RT2561C, RF RT2527
(Gigabyte GN-WI01GS 802.11b/g)
11b/g OK (7+ days 2010-08-21) Signal1 bad10,11

1 11b/g good/excellent always has good, stable and reliable connectivity on ground floor. 11a good requires excellent performance on 1st floor:
The Access-Point (alix3d2 or alix2d4) is under the roof on the 2nd floor. As client we have a Windows XP SP2 notebook with IBM Thinkpad 802.11a/b/g Mini PCI Wireless Card.
Device notebook on 2nd floor (2m distance to AP) notebook on 1st floor notebook on ground floor
  signal transfer2 aes3 transfer2 tkip4 signal transfer2 aes3 transfer2 tkip4 signal transfer2 aes3 transfer2 tkip4
dcma-82 11b5 3m 43s 7 3m 43s 7 3m 45s 7
cm9 11a6 1m 28s 58s 1m 26s 57s n/a n/a n/a
cm9 11b5 3m 45s 7 3m 45s 7 4m 1s, 4m 9s 7
ibm ab 11a6         n/a    
ibm ab 11b5         4m 12s, 4m 10s 7
ibm abg 11a6       56s n/a    
ibm abg 11b5         4m 15s, 4m 11s 7
ms-6833 11b5         3m 50s, 3m 44s 7
ms-6833 11g8 1m 30s 1m 1m 28s 1m 3s 1m 33s 1m 14s
MIWLGRL 11g8     1m 26s 57s
3m 31s, 4m 37s,
3m 17s, 1m 34s		 6m 31s, 1m 12s
GN-WI01GS 11g8   2m 18s, 2m 5s   3m 55s, 2m10s   2m 55s, 5m 20s
2 Upload transfer of one 143 MB (149'975'040 Bytes) file to a 100baseTX wired computer.
3 Using the standard WPA-PSK AES encryption (client side option; automatically set by XP SP2).
4 Using WPA-PSK TKIP encryption (client side option).
5 with two 2.4GHz, 5dBi antennas. Device settings: media autoselect mode 11b mediaopt hostap nwid some-name chan 11 wpa wpapsk 0xabc...
6 with two 5GHz, 5dBi antennas. Device settings: media autoselect mode 11a mediaopt hostap nwid some-name chan 36 wpa wpapsk 0xabc...
7 no improvement over AES.
8 with two 2.4GHz, 5dBi antennas. Device settings: media autoselect mode 11g mediaopt hostap nwid some-name chan 11 wpa wpapsk 0xabc...
9 kernel panic changing wlan modes using 'ifconfig' or 'netstart'. remedy: reboot for changes to take effect.
10 signal/transfer on ground floor too bad for 2.4GHz.
11 can't get highest possible transferrates out of 11g.

Recommendation
11a
11b dcma-82, ms-6833
11g ms-6833
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