IBM 12.1(22)EA6 User Manual

Page of 550
 
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 
. 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 
 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