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Auto-qos configuration example – IBM 12.1(22)EA6 User Manual

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23-14

Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide

24R9746

Chapter 23 Configuring QoS

Auto-QoS Configuration Example

Auto-QoS Configuration Example

This section describes how you could implement auto-QoS in a network, as shown in

Figure 23-3

. For

optimum QoS performance, auto-QoS should be enabled on all the devices in the network.

Figure 23-3

Auto-QoS Configuration Example Network

The intelligent wiring closets in

Figure 23-3

are composed of Catalyst 2950 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.

Note

You should not configure any standard-QoS commands before entering the auto-QoS commands. You
can fine-tune the QoS configuration, but we recommend that you do so only after the auto-QoS
configuration is completed.

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