While deploying a 5760 to match an existing 4400 controller, I attempted to disable the session timeout, but to no avail. Let's look at my simple WLAN I have configured:
Boise3850-IDF#show run wlan wlan JakeTestWlan 1 JakeTestWlan client vlan 12 security dot1x authentication-list Cisco shutdown
No sign of the session timeout in here right? WRONG! Let's check the show wlan:
Boise3850-IDF#show wlan all Number of WLANs: 1 WLAN Profile Name : JakeTestWlan ================================================ Identifier : 1 Network Name (SSID) : JakeTestWlan Status : Disabled Broadcast SSID : Enabled Maximum number of Associated Clients : 0 AAA Policy Override : Disabled Network Admission Control NAC-State : Disabled Number of Active Clients : 0 Exclusionlist Timeout : 60 Session Timeout : 1800 seconds ...
Well crap. 1800 seconds. Let's configure a session timeout of 0. Piece of cake right?
Boise3850-IDF(config-wlan)#session-timeout ? <300-86400> The duration of session in seconds
Hmm, serious? Ok, time for the no session-timeout. Just use the "no session-timeout" command. easy stuff. Oh wait? No change? really?
But! But, my other WLAN does it!
WLAN Profile Name : JakeTestPSK ================================================ Identifier : 2 Network Name (SSID) : JakeTestPSK Status : Disabled Broadcast SSID : Enabled Maximum number of Associated Clients : 0 AAA Policy Override : Disabled Network Admission Control NAC-State : Disabled Number of Active Clients : 0 Exclusionlist Timeout : 60 Session Timeout : Infinity
Ah, so a quick glance at the 5760 config guide says the following about the session timeout:
The range and default values vary according to the security configuration. If WLAN security is configured for dot1x, the range is 300 to 86400 and the default is 1800 seconds. For all other WLAN security configurations, the range is 1 to 65535 and the default value is 0. A value of 0 indicates no session timeout.
I'm not sure if there is a place in the Airespace controller to configure this, maybe it's a Dot1X timer, but I didn't find it in the trusty "EAP Timers on Wireless Lan Controllers" doc