Extreme Networks Summit WM User Manual page 246

Availability and session availability
e In the Poll Timeout box, type/edit the appropriate value.
f To save your changes, click Save.
7 From the main menu of the secondary Summit WM Controller, click Altitude AP Configuration.
The AP Properties page is displayed.
8 Select the Enable fast failover checkbox.
9 Set the Detect link failure value and the Poll Timeout value as explained in Step 5.
NOTE
The fast failover configuration must be identical on both the primary and secondary Summit WM Controllers. Logs
are generated if the configuration is not identical. For more information, see the Summit WM Controller, Access
Points and Convergence Software Maintenance Guide.
After you have configured fast failover, you must configure session availability to preserve the user
session during the failover.
Enabling session availability
Before you enable session availability, you must ensure:
The primary and secondary Summit WM Controllers are properly configured in 'availability' mode.
For more information, see
The fast failover feature is properly configured. For more information, see
on page 243.
246
"Availability" on page 231.
"Configuring fast failover"
Summit WM User Guide, Software Version 5.3