Configuring Wireless Parameters 239Nortel WLAN—Management Software 2300 Series Reference GuideVoice Configuration TabThe Voice Configuration tab lists settings used for VoIP service profiles. For some options, the settings selected byWLAN Management Software differ depending on the vendor you select when you create the service profile.• Static CoS—When enabled, marks all traffic on the SSID with the same CoS value (the Static CoS Value). Thisoption is automatically enabled for Vocera voice service profiles but is disabled for all other service profile types.• Static CoS Value—CoS value assigned by the AP to all traffic on the service profile’s SSID, when static CoS isenabled. This value is used only when static CoS is enabled. The default is 0 if you enable static CoS manually.However, if static CoS is enabled automatically as part of a Vocera service profile, the default is 7 (highest priority).• CAC Mode—Call Admission Control (CAC) policy for allowing new sessions on the radios serving an SSID:• None—CAC is disabled. This is the setting automatically selected for all service profile typesexcept Vocera voice service profiles.• Sessions—CAC is session-based. An AP radio cannot have more than the specified number ofactive sessions for the SSID. This is the setting automatically selected for Vocera voice serviceprofiles.• Max Sessions—When the CAC mode is Sessions, specifies the maximum number of active sessions radios can havefor the SSID. The default is 12.• Short Retry Count—Number of times (1 to 15) the AP transmits an unacknowledged unicast frame that is shorterthan the fragment threshold before discarding the frame. The default is 5.• Long Retry Count—Number of times (1 to 15) the AP transmits an unacknowledged unicast frame that is equal toor longer than the fragment threshold before discarding the frame. The default is 5.Client Timeout TabThe Client Timeout tab lists settings for client session timers:• User idle timeout—Number of seconds a client can remain idle before the client’s session is changed to theDisassociated state. A client is considered to be idle until it either sends data or responds to an idle client probe. Youcan specify from 20 to 86400 seconds. The default is 180 seconds (3 minutes.) To disable the timer, specify 0.• Idle client probing—When enabled, sends a keepalive probe (a null data frame) to each wireless client. The frame issent as a unicast. The WSS expects a reply in the form of an Ack. Idle client probing is enabled by default.• Web-portal session timeout—Specifies how many seconds WSS Software waits after a Web-Portal client enters theDisassociated state before terminating the client’s session. This can be useful if you want to allow a clientconnecting through Web Portal Web-based AAA to enter standby or hibernation mode, then be able to resume itssession after waking up, without having to log on again. You can specify from 5 seconds up to 2800 seconds (a littleover 46 minutes). The default is 5 seconds. The timeout change applies globally for all Web-Portal sessions on theservice profile’s SSID. This option applies only to Web-Portal service profiles.Rate Configuration TabThe Rate Configuration tab lists the data rates supported and used by AP radios. For each radio type (802.11a, 802.11b,and 802.11g), the following rates are individually configurable:• Beacon rate—Data rate at which the radio sends beacon (SSID advertisement) frames and probe-response frames.The valid rates depend on the radio type and are the same as the mandatory rates. However, you cannot set thebeacon rate to a disabled rate. The default depends on the radio type:• 802.11a—6.0
