3com WX1200 3CRWX120695A Manuel D’Utilisation

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HAPTER

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ONFIGURING

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UALITY

 

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ERVICE

MSS supports Layer 2 and Layer 3 classification and marking of traffic, to 
help provide end-to-end QoS throughout the network. The following 
modes of QoS are supported:

„

Wi-Fi Multimedia (WMM)—Provides wireless QoS for time-sensitive 
applications such as voice and video. WMM QoS is enabled by default 
and does not require any configuration. 

„

SpectraLink Voice Priority (SVP)—Provides optimized forwarding of 
SVP voice traffic. SVP QoS is disabled by default.

Session-based Call Admission Control (CAC) is also supported. You can 
use CAC with either QoS mode to ensure bandwidth availability by 
limiting the number of active sessions a radio can have. 

Broadcast control Mechanisms to reduce overhead 

caused by wireless broadcast traffic 
or traffic from unauthenticated 
clients. One or more of the 
following can be enabled:

„

Proxy ARP 

„

No-Broadcast 

„

DHCP Restrict 

All three options are disabled by 
default.

See the following:

„

„

Session timers

Keepalives and timeouts for clients 
sessions. The following timeout 
parameters can be configured:

„

user idle timeout—Period a 
client can remain idle before 
being disassociated (default: 
180 seconds)

„

idle-client probing—keepalives 
sent to clients (enabled by 
default)

Table 26   QoS Parameters (continued)