3com 5500-ei pwr Reference Guide

 

1-3 

System View: return to User View with Ctrl+Z. 

[Sysname] interface Ethernet 1/0/1 

[Sysname-Ethernet1/0/1] igmp transparent enable 

Ethernet port view 

None 

Use the vlan-vpn enable command to enable the VLAN-VPN feature for a port. 

Use the undo vlan-vpn command to disable the VLAN-VPN feature for a port. 

By default, the VLAN-VPN feature is disabled. 

With the VLAN-VPN feature enabled, a received packet is tagged with the default VLAN tag of the 

receiving port no matter whether or not the packet already carries a VLAN tag.  

z 

If the packet already carries a VLAN tag, the packet becomes a dual-tagged packet.  

z 

Otherwise, the packet becomes a packet carrying the default VLAN tag of the port.  

 

If XRN fabric is enabled on a device, the VLAN-VPN feature cannot be enabled on any port of the 

device. 

 

You can use the display port vlan-vpn command to display the configuration information of 

VLAN-VPN on the ports to verity your configuration. 

After the VLAN-VPN function is enabled, you can use the vlan-vpn vid command and the raw-vlan-id 

inbound command to configure the selective QinQ function. Refer to 

 for details.  

# Enable the VLAN-VPN feature for Ethernet 1/0/1 port. 

<Sysname> system-view 

System View: return to User View with Ctrl+Z. 

[Sysname] interface Ethernet 1/0/1 

[Sysname-Ethernet1/0/1] vlan-vpn enable