413
[SwitchB-vlan-100] mac-forced-forwarding server 10.1.1.200
# Enable ARP snooping.
[SwitchB-vlan-100] arp-snooping enable
[SwitchB-vlan-100] quit
# Configure Ethernet 1/0/4 and Ethernet 1/0/6 as network ports.
[SwitchB] interface ethernet 1/0/4
[SwitchB-Ethernet1/0/4] mac-forced-forwarding network-port
[SwitchB- Ethernet1/0/4] quit
[SwitchB] interface ethernet 1/0/6
[SwitchB-Ethernet1/0/6] mac-forced-forwarding network-port
5. Enable STP on Switch C.
<SwitchC> system-view
[SwitchC] stp enable