Carrier Access Access Navigator Alarm Reporting, Alarm Testing, Alarm and Status Indicators

Diagnostics & Troubleshooting

Alarm Reporting

￿￿MINOR alarms affect service to 2 to 23 subscribers, or reduce service reliability. A minor alarm will occur if a redundant element fails, such as a Controller card, power supply, or GR-303 control channel.

￿￿WARNING alarms (GR-303 only) indicate a service state change.

￿￿ALERT alarms are non-service affecting, but indicate a quality problem. Alerts will occur when monitored traffic events exceed user-set thresholds.

Alarm Reporting

Access Navigator reports alarms in several ways:

￿￿Alarm Indicators. LED indicators on the front panel (see Figure 15-2)show critical, major, and minor alarms, as well as system, power, and DS1 status.

￿￿Alarm Relay Outputs. The Access Navigator has alarm relays that are activated by critical, major, and minor alarms. These three relays provide dry contact closures for connection to the office facility’s alarm system.

￿￿Alarm Inputs. External contact closures can be reported.

￿￿CLI Alarm Messages. The control interface provides alarm messages and log status reports to aid the operator in locating problems and monitoring events.

￿￿EOC Alarm Messages. Access Navigators with the GR-303 option provide alarm message reporting to the switch over the Embedded Operations Channel (EOC) in the GR-303 interface group DS1s.

￿￿SNMP Trap Reports. Traps are generated when certain events occur (see SNMP Trap Reports on page C-9).The Access Navigator can send these reports to up to three Network Management System (NMS) IP addresses.

Alarm Testing

Access Navigator alarm functions can be manually tested using the following command for setting critical, major, and minor alarms. Turning alarms on or off will produce alarm messages and log entries stating that the alarm event was manually set or cleared by the user. Manually set alarms are not reported over the GR-303 EOC link to the switch.

Syntax: set alarms <criticalmajorminor> <onoff>

Alarm and Status Indicators

The Access Navigator front and rear panels provide the following alarm and status indicators. For detailed information, see Alarm and Status Indicators on page 15-8.

￿￿Power

￿￿Active (Controller) ￿￿Critical alarm ￿￿Major alarm ￿￿Minor alarm

Access Navigator - Release 1.8 August 2003 15-3