3com 8807 User Guide

■

GARP VLAN registration protocol (GVRP), spanning tree protocol (STP), and 
802.1x protocol are disabled on the ports.

■

IGMP Snooping is disabled in the VLAN to which the ports belong.

■

IGMP is disabled in the VLAN to which the port belongs.

■

This port is not a VLAN-VPN uplink port.

c 

■

VLAN VPN cannot be enabled if the port has any of the protocol among GVRP, 
STP, and 802.1x enabled.

■

VLAN VPN cannot be enabled on a port if the VLAN which the port belongs to 
has IGMP Snooping enabled or its VLAN interface has IGMP enabled. Similarly, 
if a port is VLAN VPN-enabled, you cannot enable IGMP Snooping in the VLAN 
to which the port belongs or enable IGMP on the VLAN interface of the VLAN.

■

If you have enabled VLAN VPN for the ports in the VLAN, the VLAN cannot be 
removed.

■

After you enable the QinQ function, the configured ACL may fail to function.

None

Table 813   Configure VLAN VPN for a port

Enter system view 

system-view 

- 

Enter Ethernet port view 

interface { interface-type 
interface-number | 
interface-name } 

- 

Enable VLAN VPN 

vlan-vpn enable 

By default, VLAN VPN is 
disabled on a port.

The port for which you enable 
VLAN VPN must be an Access 
port. 

Display VLAN VPN 
configuration information 
about all ports in the system 

display port vlan-vpn 

Information about the current 
TPID value, VLAN-VPN ports, 
VLAN-VPN uplink ports is 
displayed.

Table 814   Configure VLAN VPN for PVC

Enter system view 

system-view 

-