Cisco Systems 2950 Auto-QoS Configuration Example

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Catalyst2950 and Catalyst2955 Switch Software Configuration Guide
78-11380-10
Chapter30 Co nf iguring QoS
Auto-QoS Configuration Example
Auto-QoS Configuration Example
Note This example is applicable only if your switch is running the EI.
This section describes how you could implement auto-QoS in a network, a s sh own in Fi gure 30-3. For
optimum QoS performance, auto-QoS should be enabled on all the devices in the network.
Figure30-3 Auto-QoS Configuration Example Network
The intelligent wiring closets in Figure30-3 are co mposed of Catalyst2950 switches running the EI and
Catalyst 3550 switches. The object of this example is to prioritize the VoIP traffic over all other traffic.
To do so, enable auto-QoS on the switches at the edge of the QoS domains in the wiring closets.
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