Dell DPND-523-EN12 manual Optional Adjust bridge aging

Network Discovery

What happens if a device with directed community strings is not configured with the IP address of the Peregrine appliance?

„Network Discovery will behave as though the device does not have SNMP management turned on. Network Discovery will appear to work, but you’ll eventually notice that it is working poorly. Once Network Discovery is up and running, the Exceptions reports can advise you of problems.

(Optional) Adjust bridge aging

To improve the reliability and speed of Network Discovery, adjust bridge aging on your bridges, routers, switches, and concentrators. Turn bridge aging on, and set the bridge aging interval to 2-6 hours. Smaller networks can use shorter intervals; larger networks will need longer intervals. Network Discovery’s Exceptions reports can tell you which devices should have their bridge aging adjusted.

Plan the device and port to which the Peregrine appliance will be attached

Plan to attach the Peregrine appliance:

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behind your corporate firewall

to an Ethernet port on a device close to the top of your network. Network Discovery works best if the port is SNMP managed.

Note: Attach a management workstation to the same device as the Peregrine appliance. This will make the setup process smoother. It also ensure that the management workstation does not become isolated from Network Discovery in the event of device failures.

26 Prepare the network