> # Event Triggers

> This section discusses Call Home trigger events. Trigger events are divided into categories, with each category assigned CLI commands to execute when the event occurs.

> Table 4-2 Event Triggers
> Event | Alert Group | Event Name | Description | Call Home Message Level
> --- | --- | --- | --- | ---
> Call Home | System and CISCO_TAC | SW_CRASH | A software process has crashed with a stateless restart, indicating an interruption of a service. | 5
> System and CISCO_TAC | SW_SYSTEM_INCONSISTEN T | Inconsistency detected in software or file system. | 5
> Environmental and CISCO_TAC | TEMPERATURE_ALARM | Thermal sensor indicates temperature reached operating threshold. | 6
> POWER_SUPPLY_FAILURE | Power supply failed. | 6
> FAN_FAILURE | Cooling fan has failed. | 5
> Line Card Hardware and CISCO_TAC | LINECARD_FAILURE | Line card hardware operation failed. | 7
> POWER_UP_DIAGNOSTICS_ FAILURE | Line card hardware failed power-up diagnostics. | 7
> Line Card Hardware and CISCO_TAC | PORT_FAILURE | Hardware failure of interface port(s). | 6
> Line Card Hardware, Supervisor Hardware, and CISCO_TAC | BOOTFLASH_FAILURE | Failure of boot compact flash card. | 6
> Supervisor Hardware and CISCO_TAC | NVRAM_FAILURE | Hardware failure of NVRAM on supervisor hardware. | 6
> Supervisor Hardware and CISCO_TAC | FREEDISK_FAILURE | Free disk space is below a threshold on supervisor hardware. | 6
> Supervisor Hardware and CISCO_TAC | SUP_FAILURE | Supervisor hardware operation failed. | 7
> POWER_UP_DIAGNOSTICS_ FAILURE | Supervisor hardware failed power-up diagnostics. | 7
> Supervisor Hardware and CISCO_TAC | INBAND_FAILURE | Failure of in-band communications path. | 7
> Supervisor Hardware and CISCO_TAC | EOBC_FAILURE | Ethernet out-of-band channel communications failure. | 6
> Call Home | Supervisor Hardware and CISCO_TAC | MGMT_PORT_FAILURE | Hardware failure of management Ethernet port. | 5
> License | LICENSE_VIOLATION | Feature in use is not licensed, and are turned off after grace period expiration. | 6
> Inventory | Inventory and CISCO_TAC | COLD_BOOT | Switch is powered up and reset to a cold boot sequence. | 2
> HARDWARE_INSERTION | New piece of hardware inserted into the chassis. | 2
> HARDWARE_REMOVAL | Hardware removed from the chassis. | 2
> Test | Test and CISCO_TAC | TEST | User generated test. | 2
> Port syslog | Syslog-group- port | SYSLOG_ALERT | Syslog messages corresponding to the port facility. | 2
> RMON | RMON | RMON_ALERT | RMON alert trigger messages. | 2

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