
Availability and Session Availability
Session Availability
SCALANCE WLC711
User Guide, V8.11, 07/2012, C79000-G8976-C260-03 12-9
c. Check the statement at the top of the screen.
If the statement reads Availability link is up, the availability feature is configured
correctly. If the statement reads Availability link is down, check the configuration error
logs. For more information on logs, see the SCALANCE WLC711 Maintenance Guide.
Session Availability
Session availability enables Wireless APs to switch over to a standby (secondary) SCALANCE
IWLAN Controller fast enough to maintain the mobile user’s session availability in the following
scenarios:
• The primary SCALANCE IWLAN Controller goes down (Figure 12-1).
Figure 12-1 AP Fail Over to 2ndary Controller When Primary Goes Down
• The Wireless AP’s network connectivity to the primary SCALANCE IWLAN Controller fails
(Figure 12-2).
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