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Catalyst 2960 Switch Software Configuration Guide
78-16881-01
Chapter 29 Configuring QoS
Configuring Auto-QoS
This example shows how to enable auto-QoS and to trust the QoS labels received in incoming packets
when the switch or router connected to a port is a trusted device:
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# auto qos voip trust
Auto-QoS Configuration Example
This section describes how you could implement auto-QoS in a network, as shown in Figure 29-10. For
optimum QoS performance, enable auto-QoS on all the devices in the network.
Figure 29-10 Auto-QoS Configuration Example Network
Figure 29-10 shows a network in which the VoIP traffic is prioritized over all other traffic. Auto-QoS is
enabled on the switches in the wiring closets at the edge of the QoS domain.
101234
Cisco router
To Internet
Trunk
link
Trunk
link
Cisco IP phones
End stations
Cisco IP phones
Video server
172.20.10.16
IP
IP
IP
IP
Identify this interface
as connected to a
trusted switch or router
Identify this interface
as connected to a
trusted switch or router
Identify these
interfaces as
connected to
IP phones
Identify these
interfaces as
connected to
IP phones