Troubleshooting guide

1-26
Cisco Wide Area Application Services Configuration Guide
OL-26579-01
Chapter 1 Configuring Network Settings
Configuring CDP Settings
When you change the setting, you get the following confirmation message: “This option will take effect
immediately and will affect the device configuration. Do you wish to continue?” Click OK to continue.
Configuring CDP Settings
The Cisco Discovery Protocol (CDP) is a device discovery protocol that runs on all Cisco-manufactured
devices. With CDP, each device in a network sends periodic messages to all other devices in the network.
All devices listen to periodic messages that are sent by others to learn about neighboring devices and
determine the status of their interfaces.
With CDP, network management applications can learn the device type and the Simple Network
Management Protocol (SNMP) agent address of neighboring devices. Applications are able to send
SNMP queries within the network. CiscoWorks2000 also discovers the WAAS devices by using the CDP
packets that are sent by the WAAS device after booting.
To perform device-related tasks, the WAAS device platform must support CDP to be able to notify the
system manager of the existence, type, and version of the WAAS device platform.
To configure CDP settings, follow these steps:
Step 1 From the WAAS Central Manager menu, choose Devices > device-name (or Device Groups >
device-group-name).
Step 2 Choose Configure > Network > CDP. The CDP Settings window appears.
Step 3 Check the Enable check box to enable CDP support. By default, this option is enabled.
Step 4 In the Hold Time field, enter the time (in seconds) to specify the length of time that a receiver is to keep
the CDP packets.
The range is 10 to 255 seconds. The default is 180 seconds.
Step 5 In the Packet Send Rate field, enter a value (in seconds) for the interval between CDP advertisements.
The range is 5 to 254 seconds. The default is 60 seconds.
Step 6 Click Submit.
To configure CDP settings from the CLI, you can use the cdp global configuration command.
Configuring the DNS Server
DNS allows the network to translate domain names entered in requests into their associated IP addresses.
To configure DNS on a WAAS device, you must complete the following tasks:
• Specify the list of DNS servers, which are used by the network to translate requested domain names
into IP addresses that the WAAS device should use for domain name resolution.
• Enable DNS on the WAAS device.
To configure DNS server settings for a WAAS device, follow these steps:
Step 1 From the WAAS Central Manager menu, choose Devices > device-name (or Device Groups >
device-group-name).