Configuring SNMP logging
Enable SNMP logging only if necessary. SNMP logging is memory-intensive and might impact device performance.
The SNMP agent logs Get requests, Set requests, Set responses, SNMP notifications, and SNMP authentication failures, but does not log Get responses.
Get operation—The agent logs the IP address of the NMS, name of the accessed node, and node OID.
Set operation—The agent logs the NMS' IP address, name of accessed node, node OID, variable value, and error code and index for the Set operation.
Notification tracking—The agent logs the SNMP notifications after sending them to the NMS.
SNMP authentication failure—The agent logs related information when an NMS fails to be authenticated by the agent.
The SNMP module sends these logs to the information center. You can configure the information center to output these messages to certain destinations, such as the console and the log buffer. The total output size for the node field (MIB node name) and the value field (value of the MIB node) in each log entry is 1024 bytes. If this limit is exceeded, the information center truncates the data in the fields. For more information about the information center, see "Configuring the information center."
To configure SNMP logging:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. (Optional.) Enable SNMP logging. | snmp-agent log { all | authfail | get-operation | set-operation } | By default, SNMP logging is disabled. |
3. (Optional.) Enable SNMP notification logging. | snmp-agent trap log | By default, SNMP notification logging is disabled. |