4 tpid adjusting configuration, 1 configuration prerequisites, 2 configuration procedure – H3C Technologies H3C S3100 Series Switches User Manual
Page 609: 4 tpid adjusting configuration -5

Operation Manual – VLAN VPN
H3C S3100-52P Ethernet Switch
Chapter 1 VLAN-VPN Configuration
1-5
Operation
Command
Description
Enable the inner VLAN
Tag priority replication
function
vlan-vpn inner-cos-trust
enable
Required
By default, the inner
VLAN tag priority
replication function is
disabled. And the priority
of an outer VLAN tag is
that of the default priority
of the current port.
Display the VLAN-VPN
configuration of about all
ports
display port vlan-vpn
This command can be
executed in any view.
Caution:
If you have configured the port priority, (refer to the QACL part of H3C S3100-52P
Ethernet Switch Operation Manual for more), after you configure to replicate the tag
priority of the inner VLAN tag of a VLAN-VPN packet, the switch will prompt that the
port priority configuration on the current port is invalid.
1.4 TPID Adjusting Configuration
1.4.1 Configuration Prerequisites
The TPID value of the peer end of the public network is available.
1.4.2 Configuration Procedure
Table 1-4
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 any of the protocol type
values listed in Table 1-1.
Display VLAN-VPN
configuration information
about all ports
display port vlan-vpn
You can execute the
display
command in any
view.