Cisco CISCO1401 Software Guide - Page 170

QoS Configuration Examples, Giving Priority to Voice Traffic

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QoS Configuration Examples Chapter 13 Configuring QoS Beginning in privileged EXEC mode, follow these steps to adjust the CW-min and CW-max settings: Step 1 Step 2 Step 3 Step 4 Step 5 Command Purpose configure terminal Enter global configuration mode. interface dot11radio 0 Enter interface configuration mode for the radio interface. traffic class { cw-min number } { cw-max number } { fixed-slot number } Assign CW-min, CW-max, and fixed-slot settings to a traffic class. Use the values in Table 13-2 to enter settings that provide the best performance for your network configuration. Note If packet concatenation is enabled, you need to adjust the CW-min and CW-max settings only for traffic class 0. Concatenation is enabled by default. end Return to privileged EXEC mode. copy running-config startup-config (Optional) Save your entries in the configuration file. Use the no form of the command to reset the setting to defaults. QoS Configuration Examples These sections describe two common uses for QoS: • Giving Priority to Voice Traffic, page 13-10 • Giving Priority to Video Traffic, page 13-12 Giving Priority to Voice Traffic This section demonstrates how you can apply a QoS policy to your wireless network's voice VLAN to give priority to wireless phone traffic. In this example, the network administrator creates a policy named voice_policy that applies voice class of service to traffic from Spectralink phones (protocol 119 packets). The user applies the voice_policy to the incoming and outgoing radio ports and to the outgoing Ethernet port for VLAN 77. Figure 13-3 shows the administrator's QoS Policies page. 13-10 Cisco Aironet 1400 Series Wireless Bridges Software Configuration Guide OL-4059-01

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13-10
Cisco Aironet 1400 Series Wireless Bridges Software Configuration Guide
OL-4059-01
Chapter 13
Configuring QoS
QoS Configuration Examples
Beginning in privileged EXEC mode, follow these steps to adjust the CW-min and CW-max settings:
Use the
no
form of the command to reset the setting to defaults.
QoS Configuration Examples
These sections describe two common uses for QoS:
Giving Priority to Voice Traffic, page 13-10
Giving Priority to Video Traffic, page 13-12
Giving Priority to Voice Traffic
This section demonstrates how you can apply a QoS policy to your wireless network’s voice VLAN to
give priority to wireless phone traffic.
In this example, the network administrator creates a policy named
voice_policy
that applies voice class
of service to traffic from Spectralink phones (protocol 119 packets). The user applies the voice_policy
to the incoming and outgoing radio ports and to the outgoing Ethernet port for VLAN 77.
Figure 13-3
shows the administrator’s QoS Policies page.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
interface dot11radio 0
Enter interface configuration mode for the radio interface.
Step 3
traffic
class
{
cw-min
number
}
{
cw-max
number
}
{
fixed-slot
number
}
Assign CW-min, CW-max, and fixed-slot settings to a traffic
class. Use the values in
Table 13-2
to enter settings that provide
the best performance for your network configuration.
Note
If packet concatenation is enabled, you need to adjust
the CW-min and CW-max settings only for traffic class
0. Concatenation is enabled by default.
Step 4
end
Return to privileged EXEC mode.
Step 5
copy running-config startup-config
(Optional) Save your entries in the configuration file.