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DES-7200 Configuration Guide Chapter 12 QinQ Configuration
12-30
12.3.2.5 Verification
Step 1: Verify whether the configurations are correct. Key points: whether the
type of downlink interface is dot1q-tunnel, whether the outer Tag VLAN is
included in the allowed VLAN list of the interface, whether the mapping policy
on the interface is correct, and whether the uplink port has been properly
configured.
DES-7200#show running-config interface gigabitEthernet 0/1
interface GigabitEthernet 0/1
switchport mode dot1q-tunnel
switchport dot1q-tunnel allowed vlan add untagged 101,201
dot1q outer-vid 101 register inner-vid 101-200
dot1q outer-vid 201 register inner-vid 201-300
spanning-tree bpdufilter enable
！
interface GigabitEthernet 0/2
switchport mode dot1q-tunnel
switchport dot1q-tunnel allowed vlan add untagged 101,201
dot1q outer-vid 101 register inner-vid 101-200
dot1q outer-vid 201 register inner-vid 201-300
spanning-tree bpdufilter enable
!
interface GigabitEthernet 0/3
switchport mode uplink
Step 2: Verify the QinQ configuration of respective ports again. Key points are
the same as Step 1.
DES-7200#show interfaces dot1q-tunnel
========Interface Gi0/1========
Native vlan: 1
Allowed vlan list:1,101,201
Tagged vlan list:
========Interface Gi0/2========
Native vlan: 1
Allowed vlan list:1, 101,201
Tagged vlan list: