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QinQ Traffic Forwarding Fails Because the Outer VLAN Is Not Created
Fault Symptom
After selective QinQ is configured on an interface, traffic forwarding fails.
Procedure
- Run the display this command in the view of the interface configured with selective QinQ to check the outer VLAN tag.
- Run the display vlan summary command in any view to check whether the outer VLAN has been created.
<HUAWEI> display vlan summary Static vlan: Total 3 static vlan. 1 9 to 10 Dynamic vlan: Total 0 dynamic vlan. Reserved vlan: Total 0 reserved vlan.- If the command output contains the outer VLAN ID, the outer VLAN has been created. Continue to check for other common misconfigurations.
- If the command output does not contain the outer VLAN ID, the outer VLAN is not created. Run the vlan batch command to create a VLAN and check whether QinQ traffic can be correctly transmitted. If traffic forwarding still fails, continue to check for other common misconfigurations.