This section describes SNMP configuration guidelines and caveats:
To prevent management systems from attempting to manage a partially booted system, SNMP remains in a shutdown state if the configuration file fails to complete during system startup. While shut down, SNMP gets and sets are not processed. However, notifications are issued if an SNMP trap group has been configured.
In order to enable SNMP, the portions of the configuration that failed to load must be initialized properly. Start SNMP with the config>system>snmp>no shutdown command.
Use caution when changing the SNMP engine ID. If the SNMP engine ID is changed in the config>system>snmp>engineID engine-id context, the current configuration must be saved and a reboot must be executed. If the configuration is not saved and the system is not rebooted, the previously configured SNMP communities and logger trap-target notify communities will not be valid for the new engine ID.