Take V200R019C10 as an example.
An NMS periodically connects to switches and obtains device performance monitoring information through SNMP in round-robin manner. Logs are recorded only when the operations fail. The following log information will be generated if the SNMP login fails:
SNMP/4/SNMP_FAIL:Failed to login through SNMP. (Ip=[STRING], Times=[ULONG], Reason=[STRING], VPN=[STRING])
This mechanism prevents generation of a large number of redundant logs. Therefore, this mechanism is proper in most scenarios.
