A.SW1#show swithport port-security interface FastEthernet 0/12
B.SW1# show swithport port-secure interface FastEthernet 0/12
C.SW1# show port-secure interface FastEthernet 0/12
D.SW1#show running-config
A.默認(rèn)拒絕所有流量
B.不需要配置到具體端口
C.過濾方向
D.語句的次序