3com 8807 User Guide

1 Configure Switch A

# Enable rapid spanning tree protocol (RSTP) on the device.

[Switch_A] stp enable 

# Set the port Ethernet 0/1 as a trunk port and configure it to permit VLAN 10 to 
pass through.

[Switch_A] vlan 10

 

[Switch_A- Ethernet 0/1] port  link-type trunk

 

[Switch_A- Ethernet 0/1]port trunk permit vlan 10 

2 Configure Switch B

# Enable RSTP on the device.

[Switch_B] stp enable 

# Set the port Ethernet 0/1 as a trunk port and configure it to permit VLAN 10 to 
pass through.

[Switch_B] vlan 10

 

[Switch_B- Ethernet 0/1] port  link-type trunk

 

[Switch_B- Ethernet 0/1]port trunk permit vlan 10 

3 Configure Switch C

# Enable multiple STP (MSTP) on the device.

[Switch_C] stp enable 

# Enable BPDU Tunnel on the device.

[Switch_C] vlan-vpn tunnel 

# Add the port Ethernet 4/1/1 into VLAN 20.

[Switch_C] vlan  20

 

[Switch_C-Vlan 20] port Ethernet 4/1/1 

# First disable STP and then enable VLAN VPN on the port Ethernet 4/1/1.

[Switch_C] interface Ethernet 4/1/1

 

[Switch_C-Ethernet4/1/1] stp disable

 

[Switch_C-Ethernet4/1/1] vlan-vpn enable 

# Set the port Ethernet 4/1/2 as a trunk port.

[Switch_C-Ethernet4/1/2] port link-type trunk 

# Add the trunk port into all the VLANs.

[Switch_C-Ethernet4/1/2] port trunk permit vlan all 

4 Configure Switch D