A.show arp interface vlan
B.show ip interface brief
C.show interface
D.show vlan id
B、show ip bgpneighbor ipv4-out
C、show ip bgpneighbor ipv4-in
D、show ip bgpneighbor vpnv4-out
A.show version
B.show mac-address-table
C.show ip protocol
D.show running-config
A.show ip route
B.show ip protocol routing
C.show ip backup route
D.show ip backup routevrf
A.rp -a
B.show mac-address-table
C.show ip mac-address-table3
D.show ip arp
A.show ip forwarding route ospf
B.show ip route ospf
C.show ip ospf
D.show route ospf