Symptom

We cannot map multiple vlans using 'switchport vlan mapping vlan-id-range dot1q-tunnel outer vlan-id' when configuring QinQ on N9K. I have verified this behavior even on 7.0(3)I4(7), cisco recommended release

Conditions

QinQ tunnel config on any interfaces, on N9K running version earlier than 7.0(3)I5(1)

Workaround

Upgrade NXOS to 7.0(3)I5(1) or later versions

Further Problem Description