3com 8807 Reference Guide

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Use the policy vpn-target command to configure to filter the VPN-target 
extended community attributes of received routing information.

Use the undo policy vpn-target command to cancel the setting.

By default, the filtering of VPN-target extended community attribute is conducted.

# Filter the VPN-target extended community attributes of the received routing 
information.

[3Com-bgp-af-vpn] policy vpn-target 

port trunk mpls vlan from vlan-id [ to ] vlanid

Ethernet port view

vlan-id: vlan-id range of MPLS/VPN VLANs allowed to the port. The value ranges 
from vlan-id to vlan-id+1023.

Use the port trunk mpls vlan command to set the vlan-id range of MPLS/VPN 
VLANs allowed to pass the port.

Use the undo port trunk mpls command to restore the default value of vlan-id. 
The default value is 0.

By default, the range of MPLS/VPN VLANs is from 0 to 1023 and the range of 
vlan-id is from 1 to 3071. The command must be executed on a Trunk port. 
MPLS/VPN enabled VLANs and VLANs out of the configured range are excluded.

# Configure the start vlan-id of the Trunk fast Ethernet port 1.

<SW8800> system-view

 

[SW8800]interface Ethernet 3/1/1

 

[3Com-Ethernet2/1/1] port trunk mpls vlan from 3071 

port vpn-range share-mode enable

undo port vpn-range share-mode enable