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From: Johann Hugo <jhugo@icomtek.csir.co.za>
To: freebsd-current@freebsd.org
Date: Tue, 29 Jun 2004 23:13:07 +0200
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Subject: Atheros link speed selection
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Hi

I am trying to configure my atheros interface to run at OFDM/6Mbps in 11a 
mode, but somehow the interface automatically selects a higher rate 
(according to wicontrol) Are there any thing more than ifconfig media 
OFDM/6Mbps that  I need so set to force the interface to use OFDM/6Mbps.

(Kernel = 5-20040625-CURRENT )

ath1# ifconfig ath0 10.10.20.1/24 ssid ath101 media OFDM/6Mbps mode 11a 
mediaopt adhoc
ath1# ifconfig ath0
ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 10.10.20.1 netmask 0xffffff00 broadcast 10.10.20.255
        inet6 fe80::205:5dff:fe97:9801%ath0 prefixlen 64 scopeid 0x4
        ether 00:05:5d:97:98:01
        media: IEEE 802.11 Wireless Ethernet OFDM/6Mbps mode 11a <adhoc> 
(autoselect <adhoc>)
        status: associated
        ssid ath101 1:ath101
        channel 36 authmode OPEN powersavemode OFF powersavesleep 100
        rtsthreshold 2312 protmode CTS
        wepmode OFF weptxkey 1

ath1# wicontrol ath0
NIC serial number:                      [  ]
Station name:                           [ ath1.icomtek.csir.co.za ]
SSID for IBSS creation:                 [ ath101 ]
Current netname (SSID):                 [ ath101 ]
Desired netname (SSID):                 [ ath101 ]
Current BSSID:                          [ 02:05:5d:97:98:01 ]
Channel list:                           [ 0 0 1110 1 0 0 0 0 0 2220 22 ]
IBSS channel:                           [ 36 ]
Current channel:                        [ 36 ]
Comms quality/signal/noise:             [ 0 26 0 ]
Promiscuous mode:                       [ Off ]
Intersil-Prism2 based card:             [ 1 ]
Port type (1=BSS, 3=ad-hoc):            [ 0 ]
MAC address:                            [ 00:05:5d:97:98:01 ]
TX rate (selection):                    [ 6 ]
TX rate (actual speed):                 [ 54 ]
RTS/CTS handshake threshold:            [ 2312 ]
Create IBSS:                            [ On ]
Access point density:                   [ 1 ]
Power Mgmt (1=on, 0=off):               [ 0 ]
Max sleep time:                         [ 100 ]
WEP encryption:                         [ Off ]
TX encryption key:                      [ 1 ]
Encryption keys:                        [  ][  ][  ][  ]

Johann Hugo