WhatsUp Gold User's Guide -- Viewing and Changing Dependencies

Viewing and Changing Dependencies

By default, WhatsUp Gold polls devices in the order that they
were added to the map. In the Dependencies Window, you can
view and change the polling sequence and a device's dependency
on other devices.

You can set or change a dependency so that certain devices get polled only if another device that they are connected to is up or down. For example, you may want to poll intervening routers only if the end point cannot be reached. An easy way to set this up is to use the Traceroute tool (see page 187) to automatically map a path to an address and tell it to Set Dependencies. Look at the result in the Dependencies Window after doing this.

From the View menu, select Dependencies.

The Dependencies Window shows the network as a hierarchical tree showing the polling sequence and user-defined up and down dependencies. The value in the parenthesis after the name is an item identifier to resolve ambiguous device names.

Poll Sequence and Up Dependencies. Devices are listed in the order they are polled. If a device is "up dependent" on the device above it, it is indented. You can drag a device within the branch to change the polling order of the device.

To change the polling sequence, do one of the following:

In the Poll Sequence and Up Dependencies list, drag a device to a different location in the Poll Sequence list.
Right-click a device and use the popup menu.
Select a device and use the Move to menu.

The following commands appear on the popup, Move to menu:

Start of Poll. Make the device the first device to be polled.

Move Earlier in Poll. Move the device up one position in the order.

End of Poll. Make the device the last device to be polled.

Later in Poll. Move the device down one position in the order.

Setting "Up" and "Down" Dependencies

You can set any of the devices in the map to have an "up" or "down" dependency on another device in the map. An "up dependency" means that the device is checked only if another specified device is up. A "down dependency" means that the device gets checked only if the other device is down.

Dependencies are shown in the Up Dependencies and Down Dependencies lists by their location and indentation. If a device is dependent on another device, it is indented below the other device.

To set an up or down dependency:

In the Up Dependencies or Down Dependencies list, move the device that you want to have a dependency so that it appears just below the device it will depend on.
Right-click the device that you want to have the dependency.
Select Depend on Prior Device from the right-mouse menu.

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