HP Network Direr Software Products manual Configuration

Configuration 297

Response Monitoring: In response monitoring mode 3Com Network Director only enables the IP Ping Service monitor for a device.All other monitors are disabled and are not displayed in the Live Graphs window. This greatly reduces the amount of traffic generated by monitoring a device, but only provides a minimum of information about the state of the device and prevents you from monitoring links using that device.

SNMP Traps Only: In SNMP traps only mode, 3Com Network Director disables all monitors for a device, and will only generate events in response to SNMP traps that it receives from the device.As there are no active monitors used in this mode, 3Com Network Director itself will generate no traffic for a device in this mode.However, there will be no live monitoring information available for the device, and only a minimum of information about the state of the device will be available.

No Monitoring:When you stop monitoring against a device, or if you never start monitoring against a device, it enters the no monitoring mode.In this mode all monitors are disabled for the device.In addition, 3Com Network Director de-registers itself as an SNMP trap source if it can, or ignores any SNMP Traps received from the device if it cannot. See “Registering 3Com Network Director as an SNMP Trap Destination” on page 304 for more information.

This mode generates the least traffic of all, but no live monitoring information will be available for the device and no events will be generated for the device.

When you start monitoring against a device that is in the no monitoring mode, the device will revert to using the monitoring settings that were previously set for the device.

3Com Network Director also provides an automatic monitoring mode at the Whole Map level of the hierarchy, which is selected by default.In automatic monitoring mode 3Com Network Director automatically determines the most important devices in your map, based upon device features and links.When you start monitoring against a device 3Com Network Director will then automatically use full monitoring mode for the device if it is one of the most important devices in your map, or response monitoring mode if it is not.

It is not possible to override the monitoring mode at the Subnet or Device levels of the hierarchy when automatic monitoring mode is selected at the Whole Map level. Instead, 3Com Network Director will automatically determine an appropriate monitoring mode to use for each device.