3Com Switch 8800 Family Configuration Guide

VLAN VPN Configuration 849
VLAN VPN
Configuration
Configuration
Prerequisites
■ 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.
Configuration procedure
c
CAUTION:
■ 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.
VLAN VPN
Configuration
Configuration
Perquisites
None
Configuration Procedure
Tab le 813 Configure VLAN VPN for a port
Configuration step Command Description
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.
Tab le 814 Configure VLAN VPN for PVC
Configuration step Command Description
Enter system view system-view -