Verifying the Configuration of a QinQ Termination Sub-interface and Its Connection to an L2VPN

Run the display qinq information termination [ interface interface-type interface-number [.subinterface-number ] ] command to check QinQ termination sub-interface information.
Run the display vll ccc [ ccc-name | type { local | remote } ] command to check CCC connection information.
Run the display mpls static-l2vc command to check static VC information.
Run the display mpls l2vc command on the PE to check Martini VLL information on the local PE.
Run the display mpls l2vc remote-info command on the PE to check Martini VLL information on the remote PE.