HP Network Direr Software Products manual Discovering the Network

150CHAPTER 4: DISCOVERING THE NETWORK

3Com Network Director uses interface speeds when monitoring links in order to calculate utilization. If 3Com Network Director was unable to determine a speed for a connected interface and you start monitoring the link corresponding to that interface then 3Com Network Director will be unable to provide the utilization monitor for that item.

This situation can arise on some third party devices that do not provide a suitable speed via their MIBs. It may also occur if 3Com Network Director lost communication with the device during Network Discovery, in which case additional errors should appear in this report to indicate the loss of communication.

You can set the speeds for both directions of a WAN link from the General tab of the Properties dialog box for the link. Setting the speeds will automatically start monitoring for a Utilization monitor in this state if the link is being monitored.