User's Manual

322 CHAPTER 8: THE EVENT LOG
created, opened or closed, successful completion of device backups,
agents restarting, links becoming operational and so on.
Information severity is also used for proprietary SNMP trap-based events
that 3Com Network Director does not have a specific decode for.
Warning Severity
The warning severity is used for events that indicate the presence of a
potential problem on your network. Acting upon warning severity events
allows you to take pre-emptive action to reduce the likelihood of a
problem occurring.
Warning severity is also used for 3Com Network Director internal events
that indicate the failure of an operation, such as an agent update that
could not be performed.
High Severity Events
The high severity is used for events that indicate that a problem has
occurred on your network that may result in a loss of connectivity for a
limited number of users or may affect the reliability of your network.
Critical Severity
By default, the critical severity is only used for three event types in 3Com
Network Director:
Section of network down The Section of network down event is only
generated when a group of devices in your network stop responding to
monitoring polls, and so may indicate a major network outage.
Phone network down The Phone network down event is only
generated when an NBX call processor stops responding to monitoring
polls, and so may indicate a major disruption to telephony services on
your network.
Voice network impacted The Voice network impacted event is only
generated when there are outstanding events that may affect the quality
of NBX telephony services on your network.
Recurring Severity
The recurring severity is used when the same event occurs repeatedly,
which may indicate a problem or potential problem on your network.
Rather than logging the same event multiple times, 3Com Network