330 CHAPTER 16: CONFIGURING QUALITY OF S ERVICEQoS Mode MSS supports Layer 2 and Layer 3 classification and marking of traffic, tohelp provide end-to-end QoS throughout the network. The followingmodes of QoS are supported: Wi-Fi Multimedia (WMM)—Provides wireless QoS for time-sensitiveapplications such as voice and video. WMM QoS is enabled by defaultand does not require any configuration. SpectraLink Voice Priority (SVP)—Provides optimized forwarding ofSVP voice traffic. SVP QoS is disabled by default.Session-based Call Admission Control (CAC) is also supported. You canuse CAC with either QoS mode to ensure bandwidth availability bylimiting the number of active sessions a radio can have.Broadcast control Mechanisms to reduce overheadcaused by wireless broadcast trafficor traffic from unauthenticatedclients. One or more of thefollowing can be enabled: Proxy ARP No-Broadcast DHCP RestrictAll three options are disabled bydefault.set service-profile proxy-arpset service-profileno-broadcastset service-profiledhcp-restrictSee the following: “Broadcast Control” onpage 341 “Enabling BroadcastControl” on page 345Session timers Keepalives and timeouts for clientssessions. The following timeoutparameters can be configured: user idle timeout—Period aclient can remain idle beforebeing disassociated (default:180 seconds) idle-client probing—keepalivessent to clients (enabled bydefault)set service-profileuser-idle-timeoutset service-profileidle-client-probingSee “Displaying and ChangingNetwork Session Timers” onpage 565.Table 26 QoS Parameters (continued)QoS Feature Description Configuration Command
