Table Of Contents

Wide Area Application Services

Configuring a WAAS Connection

WAAS Reference

NM WAAS

Integrated Service Engine

WCCP

Central Manager Registration

Wide Area Application Services

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Cisco's Wide Area Application Services (WAAS) is a WAN optimization and application acceleration solution that enables branch office server consolidation, improves performance for centralized applications, and provides remote users with LAN-like access to applications, storage, and content across the WAN.

The WAAS solution has three major components:

•Wide Area Engine Edge—(WAE-E). The edge WAE is installed on clients. It is a file caching device that serves client requests at remote sites and branch offices. The device is deployed at each branch office or remote campus, replacing file servers and print servers, giving local clients fast, near-LAN read and write access to a cached view of data residing at a remote data center.

•Wide Area Engine Core—(WAE-C). The core WAE component is installed on a server at the data center. It connects directly to one or more file servers or network-attached storage (NAS) devices. Core WAEs are placed between the file servers at the data center and the WAN that connects the data center to the enterprise's remote sites and branch offices. Requests that are received from edge WAEs are translated by the core WAE into the original file server protocol and forwarded to the appropriate file server. The core WAEs at the data center can provide load balancing and failover support.

•Web Cache Communication Protocol—(WCCP). This is a Cisco protocol that specifies interactions between one or more routers or Layer 3 switches, and one or more application appliances, web caches, and caches of other protocols. The purpose of the interaction is to establish and maintain the transparent redirection of selected types of traffic flowing through a group of routers to a group of appliances. Any type of TCP traffic can be redirected.

This chapter contains the help topics for the WAAS configuration screens and contains the following sections:

•Configuring a WAAS Connection

•WAAS Reference

Configuring a WAAS Connection

You must have a WAAS network interface module installed on the router in order to configure WAAS.

Complete the following steps to configure a WAAS connection:

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Step 1 If you want to review the Cisco IOS CLI commands that you send to the router when you complete the configuration, go to the Cisco SDM toolbar, and click Edit > Preferences > Preview commands before delivering to router. The preview screen allows you to cancel the configuration if you want to.

Step 2 In the Cisco SDM toolbar, click Configure.

Step 3 In the Cisco SDM taskbar, click Interfaces and Connections.

Step 4 Click the NM WAAS tab, next to the Edit Interface/Connection tab.

Step 5 Click Edit Settings to configure the router for the WAAS network module.

a. Enter the required information in the Integrated Services Engine tab. See Integrated Service Engine for more information

b. Click WCCP, and enter the required information in the WCCP tab. See WCCP for more information.

Step 6 Click OK to return to the NM WAAS tab.

Step 7 If you checked Preview commands before delivering to router in the Edit Preferences screen, the Cisco IOS CLI commands that you are sending are displayed. Click Deliver to send the configuration to the router, or click Cancel to discard it. If you did not make this setting, clicking OK sends the configuration to the router.

Step 8 In the Tools menu, click Telnet.

Step 9 Enter the router username and password.

Step 10 If necessary, enter the enable command, press Enter, and provide the enable password.

Step 11 At the Cisco IOS command prompt, enter the following commands:

Router# configure terminal

Router(config)# wccp router-list 1 default_gateway

Router(config)# wccp tcp-promiscuous router-list-num 1

Router(config)# wccp version 2 

Router(config)# end

Replace default_gateway with the IP address of the router that provides a route to the CM.

Step 12 In the NM WAAS tab, click Register.

a. Enter the IP address of the WAAS CM.

b. Choose the interface on which you want to send the registration request. The interface that you choose must have a route to the WAAS CM network.

c. Click OK. Cisco SDM displays a username and password dialog box.

d. Enter the username and password required to login to the CM.

When registration completes, Cisco SDM places the CM IP address in the HTTPS link in the top area of the screen. The link looks like the following example:

https://10.44.160.66:8443

Step 13 Click on the HTTPS link and log on to the CM. The CM displays the Cisco Wide Area Application Services Home screen.

Step 14 In the Active Alarms tab of the Home screen, find the IP address of the router WAAS NM. For example, if the IP address of the router WAAS NM is 10.10.10.1, find that IP address in the Active Alarms tab.

Step 15 Place the cursor over the alarm information for the router WAAS NM. The CM displays a context menu next to the cursor.

Step 16 From the context menu, choose Activate Device.

Step 17 In the Cisco Wide Area Application Services Home screen, click Devices. This tab is in the upper-left corner of the screen.

Step 18 In the Devices tab, click the Edit icon at the left end of the entry for the WAAS NM. This icon is located to the left of the device name.

Step 19 In the Contents pane, click Activation.

Step 20 In the Device Activation screen, check Activate, and Create a new location.

Step 21 At the bottom of the Device Activation screen, click Submit.

Step 22 Click Devices again, to display the status for all registered devices.

Step 23 Locate the entry with the IP address of the router WAAS NM.

Step 24 Read the CMS Status column and the Device Status column for that entry. The CMS status should be "Online." The device status is displayed as a traffic light. The traffic light should be green.

Step 25 If the WAAS NM failed to activate, review the configuration and correct any problems.

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WAAS Reference

The following sections describe the WAAS configuration screens:

•NM WAAS

•Integrated Service Engine

•WCCP

•Central Manager Registration

NM WAAS

If a WAAS network module is installed on the router, Cisco SDM shows the NM WAAS tab. This tab shows the current WAAS status and configuration, and from this tab you can go to the WAAS configuration screens, and log on to the WAAS CM so that you can activate the router WAAS NM.

To configure the router for WAAS, complete these tasks:

1. In the NM-WAAS tab, click Edit Settings and enter the necessary information in the Integrated Service Engine and WCCP tabs.

2. From the Cisco SDM Tools menu, choose Telnet, log in to the router, and enter these commands at the router prompt:

Router# configure terminal

Router(config)# wccp router-list 1 default_gateway

Router(config)# wccp tcp-promiscuous router-list-num 1

Router(config)# wccp version 2 

Router(config)# end

Replace default_gateway with the IP address of the router that provides a route to the CM.

3. In the NM-WAAS tab, click Register and enter the CM IP address and primary interface to use to contact the CM. Cisco SDM displays a username and password dialog.

4. Enter the username and password to register the router WAAS NM with the CM. When registration completes, Cisco SDM places the CM IP address in the HTTPS link in the top area of the screen. The link looks like the following example:

https://10.44.160.66:8443

5. In the NM-WAAS tab, click the HTTPS link to log on to the CM.

6. Use the CM to activate the WAAS NM on the router.

The topic Configuring a WAAS Connection describes these tasks in detail.

Related Links

•Configuring a WAAS Connection

Field Reference

Table 7-1 describes the information in the NM WAAS tab.

Table 7-1 NM WAAS Tab  

Element	Description
Registration status with the WAAS central manager	Cisco SDM shows one of the following: •Active—The Edge WAE is registered with the WAAS central manager. Cisco SDM displays a green icon when the Edge WAE is registered. •Inactive—The Edge WAE is not registered with the WAAS central manager. Cisco SDM displays a red icon when the Edge WAE is not registered.
Register	To log on to the CM and register the Edge WAE on the router, click Register. Note Do not attempt to register until you have configured the WAAS NM, and entered the Cisco IOS CLI commands noted at the beginning of this help topic.
Refresh	To refresh the registration status, click Refresh. Cisco SDM displays a username and password dialog to allow you to login to the CM.
To configure the WAAS device....	To launch the central manager device manager, click on the displayed link.
WAAS Configuration
WAAS Interface	The name of the WAAS network module; for example, Integrated Service Engine 0/0.
Router IP address	The IP address of the router interface to the service module. This is the IP address of the Redirect interface.
Service Module Internal IP Address	The internal IP address assigned to the service module.
Service Module External IP Address	(Optional). The external IP address assigned to the service module.
Default Gateway	The default gateway IP address used by the service module.
WCCP Protocol Settings
Version	The version of the WCCP protocol in use; for example, WCCP Version 2.
Inside Interface	The name of the router interface being used for the WCCP inside interface. This interface is connected to the LAN.
Outside Interface	The name of the router interface being used for the WCCP outside interface. This interface is connected to the WAN.
Redirect Interface	The router interface that is redirecting traffic to the WAAS service module. This interface is configured to avoid redirection loops.
Buttons
Edit Settings	Click Edit Settings to display a dialog that enables you to change integrated service engine settings and WCCP settings.
Delete	Click Delete to remove the current WAAS configuration.
Reload	Click Reload to refresh the information in this screen.

Integrated Service Engine

Enter settings for the router, the WAAS service module, and the gateway that the service module uses in this screen.

Field Reference

Table 7-2 describes the configuration fields in this screen.

Table 7-2 Integrated Service Engine Tab 

Element	Description
Router IP Address
IP Address	Enter the IP address of the router interface that is to redirect traffic to the WAAS service module.
Subnet mask	Enter the subnet mask in decimal format; for example, 255.255.255.0. Or, choose the number of subnet bits; for example, 24. Entering values in one field updates the other. For example, if you enter 255.255.255.0, the subnet bits field is automatically updated to display 24.
Service Module
Internal IP Address	Enter the internal IP address of the WAAS network module. This IP address must be on the same subnet as the router IP address used. For example, if the router IP address is 10.0.0.20, the service module internal IP address might be 10.0.0.21.
Subnet Mask	Enter the subnet mask in decimal format; for example, 255.255.255.0. Or, choose the number of subnet bits; for example, 24. Entering values in one field updates the other. For example, if you enter 255.255.255.0, the subnet bits field is automatically updated to display 24.
External IP Address	(Optional). Enter the external IP address for the WAAS network module. This IP address may be required to connect to the WAAS CM.
Subnet Mask	Enter the subnet mask in decimal format; for example, 255.255.255.0. Or, choose the number of subnet bits; for example, 24. Entering values in one field updates the other. For example, if you enter 255.255.255.0, the subnet bits field is automatically updated to display 24.
Default Gateway
Default Gateway IP Address	Enter the IP address of the default gateway router that the WAAS service module is to use.

WCCP

Configure WCCP settings in this screen. WCCP settings specify the router interfaces that redirect traffic to the WAAS NM, and information about the WAAS CM.

Field Reference

Table 7-3 describes the fields in this screen.

Table 7-3 WCCP Tab Field Reference 

Element	Description
WCCP Settings
WCCP 61 Redirect	Choose the LAN subinterface from the list that carries the traffic that you want to redirect to the WAAS NM. The interface that you choose is displayed as the Inside Interface on the NM WAAS tab. Choose IN from the list to the right of the interface list.
WCCP 62 Redirect	Choose the WAN subinterface from the list that carries the traffic that you want to redirect to the WAAS NM. he interface that you choose is displayed as the Outside Interface on the NM WAAS tab. Choose IN from the list to the right of the interface list.
WCCP Redirect Exclude	Choose the Integrated Services Engine used in this configuration to specify that the router is not to repeatedly redirect the same traffic to the local WAE.

Central Manager Registration

In this screen, register with the WAAS Central Manager.

Field Reference

Table 7-4 describes the fields in this screen

Table 7-4 WAAS Central Manager Registration  

Element	Description
IP Address	Enter the IP Address of the WAAS Central Manager.
Primary Interface	Choose the router interface on which the registration request should be sent. The interface must have a route to the WAAS Central Manager's network.