SNMP commands event-trap-enable rmon alarm rmon alarm {enable | disable} {index | all} show rmon alarm show snmp agent-port show snmp community show snmp system show snmp trap show snmp vrf show snmpv3 context show snmpv3 engine-id show snmpv3 security-level show snmpv3 users snmp-server agent-port snmp-server community snmp-server historical-counters-monitor snmp-server主机 snmp-server system-contact snmp-server system-description snmp-server system-location snmp-server vrf snmp-server trap-source interface vrf snmpv3 context snmpv3 engine-id snmpv3安全级别 snmpv3用户