A.set snmp trap-group my-trap-group link-status
B.set snmp trap-group my-trap-group categories link
C.set snmp log link-status
D.set snmp trap link-status
参考答案:B
A.set snmp trap-group my-trap-group link-status
B.set snmp trap-group my-trap-group categories link
C.set snmp log link-status
D.set snmp trap link-status
参考答案:B