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3com WX3000 User Manual

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As the position of the TPID field in an Ethernet packet is the same as that of the upper-layer protocol 
type field in a packet without VLAN Tag, to avoid confusion in the process of receiving/forwarding a 
packet, the TPID value cannot be any of the protocol type value listed in 
Table 1-1 Commonly used protocol type values in Ethernet frames 
Protocol type 
Value 
ARP 0x0806 
IP 0x0800 
MPLS 0x8847/0x8848 
IPX 0x8137 
IS-IS 0x8000 
LACP 0x8809 
802.1x 0x888E 
 
VLAN-VPN Configuration 
Configuration Task List 
Complete the following tasks to configure VLAN-VPN: 
Task 
Remarks 
Required 
Optional 
 
Enabling the VLAN-VPN Feature for a Port 
Configuration Prerequisites 
z 
The port is not a VLAN-VPN uplink port. 
z 
The port is not a remote mirror reflection port. 
Configuration procedure 
Follow these steps to enable the VLAN-VPN feature for a port: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
— 
Enter Ethernet port 
view 
interface interface-type 
interface-number 
— 
Enable the VLAN-VPN 
feature on the port 
vlan-vpn enable 
Required 
By default, the VLAN-VPN feature is 
disabled on a port.