IP Phone User Manual

7-14
User Guide for CiscoWorks QoS Policy Manager 4.1.6
OL-23444-01
Chapter 7 Provisioning: Configuring QoS for IP Telephony
Configuring QoS Using the IP Telephony Wizard
For more information about this page, see IP Telephony Wizard: Remove Network Elements Page,
page B-132.
b. Select the interfaces you want to unassign and click Remove.
The page closes.
Step 3 Click Next.
If the Display Configuration Info. check box is selected, the Configuration Info page appears. After
reviewing the assignments summary, click Next.
The voice policy groups and your Switch-to-WAN-Router interface assignments will be saved, and the
next configuration step of the wizard appears (Selecting Router WAN to Switch Connections).
Related Topics
• Using QPM Tables, page 3-16
• Using the IP Telephony Wizard, page 7-5
• Viewing Policy Information, page 8-14
Selecting Router WAN to Switch Connections
In this step, the wizard sets QoS for the WAN router connection to the access (layer 2 QoS aware) switch
in the branch office (network point 9 in Figure 7-1).
By default, a router trusts the interface to a distribution (layer 3 QoS aware) switch, so no special QoS
is required on the router input direction.
For example, in Figure 7-1, there is no need to set QoS for the router connection to the Catalyst 6000
distribution switch in the campus. In addition, no special QoS is required on the output direction, since
the layer 3 switch knows to trust DSCP from the router and sets the CoS bits accordingly. However, if
the switch has only layer 2 QoS capabilities, the router must classify traffic on input and set layer 2 CoS
bits on output.
To select Router WAN to Switch connections:
Step 1 Select the switch interfaces on which to configure QoS for the router interfaces to the distribution and
access switches, by selecting the check boxes next to the appropriate interfaces in the list.
For more information about the columns in this table, see IP Telephony Wizard: Select Router WAN to
Switch Connections Page, page B-141.
Step 2 To remove any interfaces that were previously assigned for this voice role:
a. Click the Remove button in the Advanced section of the page.
A page appears, displaying the interfaces assigned for the Router WAN to Switch voice role.
For more information about this page, see IP Telephony Wizard: Remove Network Elements Page,
page B-132.
b. Select the interfaces you want to unassign and click Remove.
The page closes.
Step 3 Click Next.