3com WL-575 Manual De Usuario

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The MIC calculation is performed in the access point for each transmitted 
packet and this can impact throughput and performance. The access point 
supports a choice of hardware or software for MIC calculation. The 
performance of the access point can be improved by selecting the best 
method for the specific deployment. 

• Using the “hardware” option provides best performance when the 

number of supported clients is less than 27. 

• Using the “software” option provides the best performance for a large 

number of clients on one radio interface. Throughput may be reduced 
when both 802.11a and 802.11g interfaces are supporting a high number 
of clients simultaneously.

wpa-pre-shared-key 
This command defines a Wi-Fi Protected Access (WPA/WPA2) Pre-shared-key.

wpa-pre-shared-key <hex | passphrase-key> <value>

• hex - Specifies hexadecimal digits as the key input format.
• passphrase-key - Specifies an ASCII pass-phrase string as the key input 

format.

• value - The key string. For ASCII input, specify a string between 8 and 63 

characters. For HEX input, specify exactly 64 digits.

Interface Configuration (Wireless-VAP)

• To support WPA or WPA2 for client authentication, use the auth 

command to specify the authentication type, and use the 
wpa-preshared-key command to specify one static key.

• If WPA or WPA2 is used with pre-shared-key mode, all wireless clients 

must be configured with the same pre-shared key to communicate with 
the access point’s VAP interface.

Outdoor 11a Building to Building (if-wireless a)#mic_mode hardware

Outdoor 11a Building to Building (if-wireless g)#