Cisco Systems 416 manual Configuring QoS on ATM Connections, 7-20

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.

User Guide for CiscoWorks QoS Policy Manager 4.1.6

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