Cisco Cisco Aironet 350 Wireless LAN Client Adapter Guia De Informação

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WLC:
config network broadcast enable
config network multicast global enable
Q. How does a client select an access point in order to get associated?
A. Access point selection is performed on the machine radio of the client. Based on the
manufacturer, driver, and type of card, the client can use different metrics to make the
selection. The most common access point affiliation mechanism used in most clients is based
on the signal strength received by the client from the access points. The 802.11 standard
requires only that the wireless client card uses a simple metric called Received Signal
Strength Indicator (RSSI) in order to report signal strength. The client then associates with the
access point with the strongest signal. It is known that these algorithms can lead to poor
performance. The main reason is due to a lack of knowledge of the load on different access
points.
Q. What are the modulation techniques available with this client
adapter?
A. There are several modulation techniques deployed at different data rates:
Orthogonal Frequency Division Multiplexing (OFDM) sub−carrier
♦ 
BPSK @ 6 and 9 Mbps
♦ 
QPSK @ 12 and 18 Mbps
♦ 
16−QAM @ 24 and 36 Mbps
♦ 
64−QAM @ 48 and 54 Mbps
♦ 
Related Information
Wireless Product Support
• 
Wireless / Mobility Technology Support
• 
Cisco Aironet Wireless LAN Client Adapters Configuration Guides
• 
Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Mac OS,
OL−1377−03
• 
Cisco Aironet 5 GHz 54 Mbps Wireless LAN Client Adapter (CB20A) − Data Sheet
• 
Technical Support & Documentation − Cisco Systems
• 
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Updated: Oct 19, 2009
Document ID: 12435