This chapter provides general information about the log events described in this guide.
For more information about event logs, see the System Management Guide.
Log events that are forwarded to a destination are formatted in a way appropriate for the specific destination whether it be recorded to a file or sent as an SNMP trap, but log events have common elements or properties. All application generated events have the following properties:
The general format for a log event with either a memory, console or file destination is as follows.
The following is a log event example:
The specific elements that compose the general format are described in Table 1.
Label | Description |
nnnn | The log entry sequence number. |
YYYY/MM/DD | The UTC or local date stamp for the log entry. YYYY — Year MM — Month DD — Date |
HH:MM:SS.SS | The UTC time stamp for the event. HH — Hours (24 hour format) MM — Minutes SS.SS — Seconds |
TZONE | The timezone (for example, UTC, EDT) as configured by configure log log-id x time-format. |
<severity> | The severity level of the event.
|
<application> | The name of the application generating the log message. |
<event_id> | The application’s event ID number for the event. |
<router> | The router name representing the VRF-ID that generated the event. Some examples include: Base, management, and vprn348. |
<subject> | The subject/affected object for the event. |
<message> | A text description of the event. |
Table 2 contains a sample log event entry from this guide for the cli_config_io log event.
Property name | Value |
Application name | USER |
Event ID | 2011 |
Event name | cli_config_io |
SNMP notification prefix and OID | N/A |
Default severity | minor |
Message format string | User from $srcAddr$: $prompt$ $message$ |
Cause | A CLI command was entered in a configuration node. |
Effect | The configuration was changed by the CLI command. |
Recovery | No recovery is required. |
The table title for a log event entry is the event name. Each entry contains the information described in Table 3.
Label | Description |
Application name | The name of the application generating the log message. |
Event id | The application’s event ID number for the event. |
Event name | The name of the event. |
SNMP notification prefix and OID | The prefix and OID of the SNMP notification associated with the log event |
Default severity | The default severity level of the event.
|
Message format string | A text description of the event. |
Cause | The cause of the event. |
Effect | The effect of the event. |
Recovery | How to recover from this event, if necessary. |