Troubleshooting
Events
178 TimeHub 5500 TL1 Reference Guide 097-55501-02 Issue 7 – January, 2005
Event Types
There are two types of events:
State events: an ongoing condition
Transient events: a transient occurrence, not an ongoing condition
State Events
State events have an active (set) and cleared state. Depending on the configuration
of the severity (ALM) property of the event, alarms can be generated or cleared, and
TL1 reports can be issued whenever these events change their state.
Values for the state event ALM property are as follows:
NONE: Alarms or reports are not generated by either setting or clearing this
event.
NONALM: Both setting and clearing this event generates a RPT EVT TSG
message indicating the change in state. No alarms are generated.
MINOR: Setting this event generates a minor alarm indication and a RPT ALM
TSG message. Clearing this event clears the associated alarm indication and
generates another RPT ALM TSG message indicating the clearing of the alarm.
MAJOR: Setting this event generates a major alarm indication and a RPT ALM
TSG message. Clearing this event clears the associated alarm indication and
generates another RPT ALM TSG message indicating the clearing of the alarm.
FAIL: This setting is similar to MAJOR, except that if no standby unit is available
to take over operation for the failed unit (or the standby unit also has a fail
condition), the alarm level is escalated to critical. If a major alarm is indicated and
the standby unit later becomes unavailable (is removed or a fail condition
occurs), this alarm is escalated to critical, with a new message generated.
Events related to input signals are normally only reported by the active Clock card to
avoid duplicate reports from the two Clock cards (see RPTALL (Report All), on page
133).
Events related to operating conditions on a Clock card, which are unrelated to input
signals, are reported by a card if the card is active or inactive.
Transient Events
Transient events do not have an ongoing state. Therefore, they cannot generate
alarms.
Note: The RTRV-COND-TSG command can be used to retrieve all
active state events, including those with the ALM property set to
NONE.
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