Datasheet

Voice/SIP Awareness Details

• QOS-Profile

• A v7.1 QoS-profile can set the CoS for a ‘traffic class’

– A traffic class is a kind of predefined traffic filter

– ‘voip-data’ is the only traffic-class defined in v7.1

• Traffic-class ‘voip-data’ sets QoS policy for packets of an active SIP call

– To the specified CoS and max bandwidth values

– All other packets get the QoS policy specified on the QoS-profile

• The ‘max-bw’ parameter for ‘voip-data’ provides 2 features

– It limits the bandwidth of a single voice call

– It uses TSPEC emulation based on the client bandwidth and data rate to

maximize system voice capacity

• The most specific policy is applied on a per packet basis

• A roaming client with an active SIP call is always supported

• SIP control packets are automatically given video priority (CoS 5)

Trapeze Networks, A BELDEN Brand | Proprietary and Confidential | 1/27/2010 Slide 15