Configuring Dual-Radio Fallback; Radio Tracking - Cisco 1941W Configuration Manual

Chapter Configuring Radio Settings

Configuring Dual-Radio Fallback

The dual-radio fallback feature, see Figure 1, allows you to configure access points so that if the non-root
bridge link connecting the access point to the network infrastructure goes down, the root access point
link through which a client connects to the access point shut down. Shutting down the root access point
link causes the client to roam to another access point. Without this feature, the client remains connected
to the access point, but won't be able to send or receive data from the network.
Figure 1
Fast Ethernet
This feature does not affect the fallback feature for single-radio access points.
Note
You can configure dual-radio fallback in three ways:
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Radio Tracking

You can configure the access point to track or monitor the status of one of its radios. If the tracked radio
goes down or is disabled, the access point shuts down the other radio. If the tracked radio comes up, the
access point enables the other radio.
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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Dual-Radio Fallback
Access point
11 a Root bridge
mode
11 a Root
bridge mode
Access point
Radio tracking
Fast Ethernet tracking
MAC-address tracking
To track radio 0, enter the following command:
# station-role root access-point fallback track d0 shutdown
To track radio 1, enter the following command:
# station-role root access-point fallback track d1 shutdown
Configuring Dual-Radio Fallback
Access point
11 a non-root
bridge mode
11 b/g root
access point
mode
Clients
265