IP Phone User Manual

7-20
User Guide for CiscoWorks QoS Policy Manager 4.1.6
OL-23444-01
Chapter 7 Provisioning: Configuring QoS for IP Telephony
Advanced IP Telephony Network Configuration
Configuring QoS on ATM Connections
The QPM IP Telephony wizard does not configure ATM connections. However, QPM includes templates
that you can use to create policy groups for your ATM interfaces.
To configure QoS on ATM Connections:
Step 1 Create and bind virtual template interfaces on the ATM PVC.
For example, the bolded command in this configuration example shows the commands for binding
virtual templates to the ATM PVC. See the configuration documentation for your device for information
on creating virtual templates.
interface ATM4/0.60 point-to-point
protocol ppp Virtual-Template60
!
interface Virtual-Template60
bandwidth 256
ip address 10.200.60.1 255.255.255.252
ppp multilink
If you have already added the devices to QPM, rediscover the devices in QPM so that the virtual template
interfaces are recognized. See Rediscovering Device Information, page 4-12.
Otherwise, add the devices to QPM (see Adding Devices to the Device Inventory, page 4-3).
Step 2 Create policy groups from these QPM templates, and assign them to the described interfaces.
• WanATMVirtualTemplate—Assign to the ATM virtual template interfaces.
• WanATMHighSpeed—Assign to the ATM PVC for interfaces greater than 768kbps.
Step 3 Deploy the policies. See Deploying Policies and QoS Configurations, page 9-2.
Configuring QoS on ATM to Frame Relay Connections
Some networks use ATM at the main site, but Frame Relay at remote sites, for communicating between
the main and remote sites. If your network uses this setup, you can use QPM’s ATM to Frame Relay IP
telephony templates to deploy QoS on the ATM and Frame Relay interfaces.
To support IP telephony, low speed interfaces (less than 768kbps) must enable link fragmentation and
interleaving. For ATM to Frame Relay connections, this can be done using Multilink PPP (MLP) over
ATM or Frame Relay. This procedure describes how to configure this setup.
To configure QoS on ATM to Frame Relay Connections:
Step 1 Create and bind virtual template interfaces on the ATM PVC and the Frame Relay DLCI.
For example, the bolded commands in these configuration examples show the commands for binding
virtual templates to the ATM PVC (Example 7-1)and Frame Relay DLCI (Example 7-2). See the
configuration documentation for your device for information on creating virtual templates.