Extreme Networks Summit WM User Manual page 247

NOTE
If you haven't configured the fast failover feature, the Enable Session Availability checkbox is not displayed on the
WM-ADs page.
Time on all the network elements - both the Summit WM Controllers in availability pair, Altitude
APs, DHCP and RADIUS servers etc.- is synchronized. For more information, see
network time" on page
Both the Summit WM Controllers in fast failover mode must be running Summit WM Software V5R3
release.
NOTE
Session availability applies only to the following WM-ADs:
- Bridge Traffic Locally at WM
- Bridge Traffic Locally at AP
NOTE
If you are using Bridge Traffic Locally at WM WM-AD, you must select None from the DHCP Option drop-down menu on
the Topology page.
NOTE
The Bridge Traffic Locally at WM must be mapped to the same VLAN on both the primary and secondary Summit WM
Controllers.
To enable session availability:
1 Log on both the primary Summit WM Controller and secondary Summit WM Controller.
2 From the main menu of the primary Summit WM Controller, click WM Access Domain
Configuration. The WM Access Domain Configuration page is displayed.
3 In the left pane, select the WM-AD for which you want to enable the session availability during the
fast failover.
4 Select the Enable Session Availability checkbox.
When you select the Enable Session Availability checkbox for a specific WM-AD, the user-sessions
are prioritized during the failover on this WM-AD. The sessions are registered on "first come-first
serve" basis.
Summit WM User Guide, Software Version 5.3
56.
"Configuring
247