Hello, I follow the steps described in "8.6 Configuring a Dot1q Termination Sub-interface to Implement Inter-VLAN Communication" avaliable in http://support.huawei.com/enterprise/br/doc/DOC1000112303 <https://mailtrack.io/trace/link/70d174e54248db9b79a7f36253120ebde91d879e?url=http%3A%2F%2Fsupport.huawei.com%2Fenterprise%2Fbr%2Fdoc%2FDOC1000112303&userId=948086&signature=7608d90d5dd77e0c> but dont work. Says "Error: Unrecognized command found at '^' position" in ip address command. Has anyone managed to configure sub-interface on the Huawei S6720 switch? -- Att Josivan Barbosa