3Com 5500 SI - Switch - Stackable, Configuration Manual

Page: 119 / 686

Inner VLAN Tag Priority Replication Configuration 119
The VLAN-VPN function is unavailable if the port has any of the protocols among
GVRP, GMRP, XRN, NTDP, STP and 802.1x enabled.
Inner VLAN Tag
Priority Replication
Configuration
You can configure to replicate the tag priority of the inner VLAN tag of a VLAN-VPN
packet to the outer VLAN tag to remain the original tag priority after the packet is
inserted an outer VLAN tag.
Configuration
Prerequisites
The VLAN-VPN function is enabled.
Configuration procedure
TPID Adjusting
Configuration
This Section describes how to configure TPID Adjusting.
Configuration
Prerequisites
Before you configure a VLAN-VPN uplink port, make sure that:
■
The VLAN-VPN function is not enabled.
Configuration Procedure
Display VLAN VPN
configuration information
about all ports display port vlan-vpn You can execute the display command in any
view.
Table 106 Configure the VLAN-VPN function for a port (continued)
Operation Command Description
Table 107 Configure to replicate the tag priority of the inner VLAN tag
Operation Command Description
Enter system view system-view -
Enter Ethernet port view interface
interface-type
interface-number -
Enable the inner VLAN
Tag priority replication
function vlan-vpn
inner-cos-trust
enable Required
By default, the inner VLAN tag priority
replicating function is disabled. And the priority
of a outer VLAN tag is that of the default priority
of the current port.
Display the VLAN-VPN
configuration information
about all ports display port
vlan-vpn You can execute the display command in any
view.
Table 108 Adjust TPID values for VLAN-VPN packets
Operation Command Description
Enter system view system-view -
Enter Ethernet port view interface
interface-type
interface-number -
Set a TPID value for the port vlan-vpn tpid value Required
Do not set the TPID value to a value that
conflicts with known protocol type values.
Set the port to be a
VLAN-VPN uplink port vlan-vpn uplink
enable Optional
By default, the VLAN-VPN uplink function is
disabled.