User's Manual

762 CHAPTER 18: NBX SUPPORT
■ IP Ping Service: 3Com Network Director checks the availability of the
phone using the ICMP Ping echo. Note that this monitor is only
available for IP phones.
Because 3Com Network Director polls the NBX Call Processor rather than
the phone itself to retrieve the phone status, even phones with no IP
address assigned can be monitored.
If the NBX Call Processor is not responding, the whole phone network will
be unavailable. As a result, all monitored phones will become red,
indicating high stress, on the map.
Monitoring a Line Card
By default, line cards will not be monitored on your network, because
they are not considered to be core devices.
To start monitoring a line card, select the icon for it on the map, and use
the Monitoring > Start Monitoring menu option.
The only monitor available for a line card is the IP Ping Service. This
monitor is only available if an IP address was configured for the line card.
If a line card does not have an IP address assigned, the Monitoring > Start
Monitoring menu option will be disabled.
Selecting the Phones
Associated with an
NBX Call Processor
3Com Network Director allows you to highlight the phones that are
managed by a given NBX Call Processor.
To do so, right-click on the NBX Call Processor icon on the map and click
the Select Related Phones option, as seen in Figure 420
.
The position of phones on the map does not necessarily mean that they
are managed by the closest NBX Call Processor.