Figure 9: DiffServ VoIP Example Network Diagram
Using the CLI to Configure DiffServ VoIP Support
1 Enter Global Config mode. Set queue 5 on all ports to use strict priority mode. This queue shall be
used for all VoIP packets. Activate DiffServ for the switch.
(Extreme 220) (Routing) #config
cos-queue strict 5
diffserv
2 Create a DiffServ classifier named 'class_voip' and define a single match criterion to detect UDP
packets. The class type match-all indicates that all match criteria defined for the class must be
satisfied in order for a packet to be considered a match.
class-map match-all class_voip
match protocol udp
exit
Configuration Examples
ExtremeSwitching 200 Series: Administration Guide
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