Configuring a poller

Use this dialog to configure a WhatsUp Gold poller. For additional information about WhatsUp Gold polling, see WhatsUp Gold Polling Engine Overview.

Enter the appropriate information:

• Name. Enter a name for the poller. This name is used to identify the poller in the Polling Configuration Library.
• Description. Enter additional information about the poller. This description is used to identify the poller in the Polling Configuration Library.
• Use for load balance. Select this option to allow the poller to assist with the load on the WhatsUp Gold system.
• Is Enabled. Select this option to enable the poller.

Important: Verify that at least one poller is configured for load balancing at all times to ensure that all devices are being polled.

Important: If you are restricting SNMP access to certain IP addresses in your network and your pollers are participating in load balancing, you must add all of the IP addresses for the pollers to the list of accepted IP addresses. This is necessary to ensure that at least one poller has access to your SNMP polled devices at any given time. If a poller is not participating in load balancing, but is setup to poll a particular subnet, those devices in that subnet must be updated to allow SNMP requests from the associated poller.

Note: After a poller is installed on a remote machine, you can modify the poller User name and Password in the Windows Credential Manager, accessible via the Windows Control Panel. Ensure you log in to this machine using the same user credentials used during the poller installation. You can also run the remote machine poller install program (repair install) on the target poller system to change the user name and password.

Devices Tab

Use the Devices tab to select the device(s) you want to apply to the poller.

To apply a device to a poller:

1. Click Add. The Select a Device dialog appears.
2. Select a single device, multiple devices, or device group from the list, then click OK. The device(s) appear on the Devices tab.

   Note: When adding multiple devices or a group of devices, you must add less than 500 devices at a time.

3. Click OK to save changes.

   Note: To remove a device from a poller, select a device from the list, then click Remove.

Subnets Tab

To apply a subnet to a poller:

1. Click Add. The Add Subnet dialog appears.
2. Enter the subnet address into the Address box in the x.x.x.x/xx format, then click OK. The subnets appear on the Subnets tab.

   Note: Prefix lengths and masks are equivalent. A prefix length indicates how many bits of the subnet IP address consist of the subnet prefix, or the number of bits of the masks that are set to 1. For example, the subnet 192.168.3.0 255.255.255.0 has a prefix of 192.168.3. Its mask, 255.255.255.0, consists of 24bits set to 1 and 8 bits set to 0. Its prefix length is 24, which is often times written as 192.168.3.0/24.

   Note: The subnet you enter must include devices that have been discovered through the WhatsUp Gold Discovery Console.

3. (Optional) Click Test to verify the connection with the devices in the IP address range.
4. Click OK to save changes.

   Note: To remove a subnet from a poller, select a subnet from the list, then click Remove.

See Also Using the Polling Configuration Library Adding a subnet