A.1 B.3 C.2 D.4
A.單VLAN;單VLAN B.VLAN CLASS;單VLAN C.VLAN CLASS;VLAN CLASS D.單VLAN;VLAN CLASS
A.當(dāng)前登錄EFMS至今 B.最近三天 C.最近一天 D.最近一周