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DES-7200 Configuration Guide Chapter 12 QinQ Configuration
12-26
DES-7200(config-if-GigabitEthernet 0/2)#switchport dot1q-tunnel allowed
vlan add untagged 20
Step 4: Configure Uplink port
DES-7200(config)# interface gigabitEthernet 0/5
DES-7200(config-if-GigabitEthernet 0/5)#switchport mode uplink
Step 5: On the Uplink port, set the TPID value of egress packets to 0x9100,
which can be recognized by third-party devices.
DES-7200(config-if-GigabitEthernet 0/5)#frame-tag tpid 9100
2) Configure Provider B
Configurations on Provider B are the same as those on Provider A. Please refer
to the configurations on Provider A given above.
12.3.1.5 Verification
Step 1: Verify whether the tunnel ports have been properly configured. Key
points: whether port type is dot1q-tunnel, whether the outer Tag VLAN is Native
VLAN and is included in the allowed VLAN list of the port, and whether the
uplink port on provider edge device is Uplink, Trunk or Hybrid port.
DES-7200#show running-config
interface GigabitEthernet 0/1
switchport mode dot1q-tunnel
switchport dot1q-tunnel allowed vlan add untagged 10
switchport dot1q-tunnel native vlan 10
spanning-tree bpdufilter enable
！
interface GigabitEthernet 0/2
switchport mode dot1q-tunnel
switchport dot1q-tunnel allowed vlan add untagged 20
switchport dot1q-tunnel native vlan 20
spanning-tree bpdufilter enable
!
interface GigabitEthernet 0/5
switchport mode uplink
frame-tag tpid 0x9100