3Com WX4400 Reference Manual page 265

Static CoS—When enabled, marks all traffic on the SSID with the
same CoS value (the Static CoS Value). This option 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 MAP to all traffic on the
SSID of the service profile, when static CoS is enabled. 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 types except Vocera voice service profiles.
Sessions—CAC is session-based. A MAP radio cannot have more
than the specified number of active sessions for the SSID. This is
the setting automatically selected for Vocera voice service profiles.
Max Sessions—When the CAC mode is Sessions, it specifies the
maximum number of active sessions radios can have for the SSID. The
default is 12.
Short Retry Count—Number of times (1 to 15) the MAP transmits an
unacknowledged unicast frame that is shorter than the fragment
threshold before discarding the frame. The default is 5.
Long Retry Count—Number of times (1 to 15) the MAP transmits an
unacknowledged unicast frame that is equal to or longer than the
fragment threshold before discarding the frame. The default is 5.
Client Timeout Tab
The 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 the Disassociated state. A client is
considered to be idle until it either sends data or responds to an idle
client probe. You can 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 is sent as a unicast. The
WX expects a reply in the form of an Ack. Idle client probing is
enabled by default.
Viewing and Configuring Wireless Services 265