3Com 4210 # Add the trunk port Ethernet 1/0/2 to all the VLANs, # Add Ethernet 1/0/2 to Vlan

82CHAPTER 14: MSTP CONFIGURATION GUIDE

[3Com] interface Ethernet1/0/2

[3Com-Ethernet1/0/2] port link-type trunk

# Add the trunk port Ethernet 1/0/2 to all the VLANs.

[3Com-Ethernet1/0/2] port trunk permit vlan all

4Configuration on Switch D

# Enable MSTP.

<3Com> system-view

[3Com] stp enable

# Enable VLAN-VPN tunneling.

[3Com] vlan-vpn tunnel

# Add Ethernet 1/0/2 to VLAN 10.

[3Com] vlan 10

[3Com-Vlan10] port Ethernet1/0/2

# Enable VLAN VPN.

[3Com] interface Ethernet1/0/2 [3Com-Ethernet1/0/2] vlan-vpn enable

[3Com-Ethernet1/0/2] quit

# Configure Ethernet 1/0/1 as a trunk port.

[3Com] interface Ethernet1/0/1

[3Com-Ethernet1/0/1] port link-type trunk

# Add the trunk port Ethernet 1/0/1 to all the VLANs.

[3Com-Ethernet1/0/1] port trunk permit vlan all

Complete Configuration

1Configuration on Switch A

#

stp enable

#

interface Ethernet1/0/1

port access vlan 10

#

2Configuration on Switch B

#

stp enable

#

interface Ethernet1/0/1

port access vlan 10

#

3Configuration on Switch C