Troubleshooting guide

1-31
Cisco Wide Area Application Services Configuration Guide
OL-26579-01
Chapter 1 Configuring AppNav
Configuring an AppNav Cluster
Adding an ANC to a Cluster
To add a new ANC to an AppNav Cluster, follow these steps:
Step 1 Configure basic device and network settings on the new ANC, and ensure that the device mode is set to
appnav-controller.
Step 2 From the WAAS Central Manager menu, choose AppNav Clusters > cluster-name.
Step 3 Click the AppNav Controllers tab below the topology diagram.
Step 4 Click the Add AppNav Controller taskbar icon.
The Add AppNav Controllers pane appears.
Step 5 Select one or more ANCs in the AppNav Controller device list by checking the check boxes next to the
device names. You can use the filter settings in the taskbar to filter the device list.
If there are devices that are ineligible to join the cluster, you can click Show Ineligible Devices to see
them and the reasons why they are ineligible. You can use the filter settings to filter the list.
Step 6 Click Next.
Step 7 Configure the interception method, policy, WCCP settings (if using WCCP interception), and interfaces
for each ANC device you are adding:
a. From the Interception Method drop-down list, choose WCCP or Inline.
b. From the AppNav Policy-Map drop-down list, choose the AppNav policy to apply to the ANC.
c. (Optional) If you want to enable optimization on the ANC devices, check the Enable WAN
optimization (Internal WAAS Node) check box.
d. (Optional) If you enabled WAN optimization, from the WAAS Node Group drop-down list, choose
the WNG to which the internal WN should belong.
e. Click Next.
f. (Optional) If you chose WCCP interception, configure the WCCP settings on the WCCP settings
pane that appears. For details on WCCP settings, see the “Configuring or Viewing the WCCP
Settings on ANCs” section on page 1-22. Remember to check the Enable WCCP Service check box
to enable WCCP.
g. If you configured WCCP settings, click Next.
h. Use the Cluster Interface Wizard graphical interface to configure the ANC interfaces. If you chose
inline interception, you must configure a bridge group interface. For details on using this wizard,
see the “Configuring Interfaces with the Graphical Interface Wizard” section on page 1-17.
i. From the Cluster Interface drop-down list, select the interface to be used for intra-cluster traffic.
j. (Optional) To enable swapping of client and WAAS device source IP address fields in intra-cluster
traffic, check the Enable swapping of source IP address in intra-cluster traffic check box.
You may want to enable this option if you are using a port channel for the cluster interface or there
is a load balancing device between the ANC and WN. This option may improve the load balancing
of traffic that the ANC distributes to WNs for optimization because it load balances based on the
client IP address rather than the ANC IP address. (For traffic from the server to the client, it swaps
the server IP address with the ANC IP address.) The Central Manager enables this feature
automatically if any existing ANCs have port channel cluster interfaces.