User's Guide

Table Of Contents
hwc_fastfailover.fm
Availability and session availability
Session availability
9034530-02,
March 2010
HiPath Wireless Controller, Access Points and Convergence Software V7.11, User Guide 399
d) In the Wireless APs list, select the Wireless APs for which you want to
set the Poll Timeout value. You can select multiple Wireless APs by
pressing the CTRL key and clicking the Wireless APs in the Wireless
APs list.
e) In the Poll Timeout box, type/edit the appropriate value.
f) To save your changes, click Save.
Note: The fast failover configuration must be identical on both the primary and
secondary HiPath Wireless Controllers. Logs are generated if the configuration is
not identical. For more information, see the HiPath Wireless Controller, Access
Points and Convergence Software Maintenance Guide.
After you have configured fast failover, you can verify session availability to
preserve the user session during the failover.
7.4.2.2 Verifying session availability
In order to have session availability, you must ensure:
The primary and secondary HiPath Wireless Controllers are properly
configured in ‘availability’ mode. For more information, see Section 7.1,
“Availability”, on page 381.
The fast failover feature is properly configured. For more information, see
Section 7.4.2.1, “Configuring fast failover and enabling session availability”,
on page 395.
Note: If you haven’t configured the fast failover feature, the Enable Session
Availability checkbox is not displayed.
Time on all the network elements — both the HiPath Wireless Controllers in
availability pair, Wireless APs, DHCP and RADIUS servers etc.— is
synchronized. For more information, see Section 3.4.10, “Configuring
network time”, on page 79.
Both the HiPath Wireless Controllers in fast failover mode must be running
the most recent HiPath Wireless Convergence Software release.
If you are using Bridge Traffic Locally at HWC topology, you must select
None from the DHCP Option drop-down menu.
The Bridge Traffic Locally at HWC must be mapped to the same VLAN on
both the primary and secondary HiPath Wireless Controllers.