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To manually re-structure device maps to adequately represent your network and turn off the
automatic-layout function for the top-level map, follow these steps:
Re-structure the top-level map by selecting and moving device icons. For example, put a collapsed
backbone in the center of the map; then, position devices around the backbone.
Go to View.
Select Automatic Layout.
Choose Off For This Submap.
A discovery filter is an ASCII file that HPOV reads to limit the discovery of devices on the network.
Use a discovery filter to:
Define the subnets and devices you want to monitor.
Avoid managing PCs and other non SNMP devices on the network.
Sometimes HPOV discovers too many devices. If HPOV discovers devices beyond your target network,
such as the entire Internet, the performance of the Unix host decreases significantly. If the device maps
begin filling up with networks, routers, and other devices that do not belong to you, use a discovery
filter.
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