Cisco Cisco Aironet 350 Wireless LAN Client Adapter

Two parameters designed to regulate the client adapter’s roaming capabilities have been added to the 
Cisco Aironet 802.11a/b/g Wireless Adapter Properties window in the Windows Control Panel:

BSS Aging Interval—The amount of time (in seconds) that the client keeps an access point in its 
roaming scanlist after it can no longer communicate to that device. The higher the value, the greater 
the number of access points to which the client may roam.

Range: 20 to 300 seconds (in 10-second increments)

Default: 120 seconds

Cisco recommends that you set the BSS Aging Interval to twice the value of the Scan Valid 
Interval. For example, if the Scan Valid Interval is 50, the BSS Aging Interval would be 100.

Scan Valid Interval—The amount of time (in seconds) before the client starts scanning for a better 
access point after reaching the roaming threshold or missing beacons. (See 

 for the threshold 

criteria.) The higher the value, the less time the client spends scanning for a better access point and 
the more time it has to send data.

Range: 20 to 120 seconds (in 5-second increments)

Default: 60 seconds

The client does not scan for a new access point as long as it has a good connection and is 
passing data.

To access these parameters, follow these steps:

Double-click My Computer, Control Panel, and System.

Click the Hardware tab and Device Manager.

Double-click Network Adapters.

Right-click Cisco Aironet 802.11a/b/g Wireless Adapter.

Click Properties and the Advanced tab. These new parameters appear in the Property list.

5 GHz, 54 Mbps or 2.4 GHz, 54 Mbps

24

24

2.4 GHz, 11 Mbps (other modes enabled)

24

9

2.4 GHz, 11 Mbps (only mode enabled)

24

5