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DES-7200 Configuration Guide Chapter 12 QinQ Configuration
12-15
Configure transparent transmission of Layer 2 protocol
12.2.5.1 Configuring an Uplink Port
In the global configuration mode, input the interface command to enter the
interface configuration mode. Follow these steps to configure an uplink port:
Command Description
configure terminal
Enter the global configuration mode.
interface <interface>
Enter the interface configuration mode.
switchport mode uplink
Configure the port as an uplink port.
end
Exit the interface mode.
show running-config
Show the configuration.
The following example demonstrates how to configure an uplink port:
DES-7200(config)# interface gigabitEthernet 0/1
DES-7200(config-if)# switchport mode up-link
DES-7200(config)# end
12.2.5.2 Configuring the TPID Value of
ISP Tag
In the global configuration mode, input the interface command to enter the
interface configuration mode. Follow these steps to configure the TPID value of
ISP tag:
Command Description
configure terminal
Enter the global configuration mode.
interface <interface>
Enter the interface configuration mode.
frame-tag tpid <tpid>
Set the TPID value of ISP tag. If you want to set it as
0x9100, directly enter frame-tag tpid 9100. Note that
the hexadecimal system is used by default. This
function takes effect on egress.
end
Exit the interface mode.
show frame-tag tpid
View the TPID value list on the port.
The following example demonstrates how to configure TPID:
DES-7200(config)# interface gigabitethernet 0/1
DES-7200(config-if)# frame-tag tpid 9100
DES-7200(config)# end
DES-7200# show frame-tag tpid interface gigabitethernet 0/1
Port tpid
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