JUNOS native vlan. Hybrid port.

show configuration interfaces xe-0/0/0 
flexible-vlan-tagging;
native-vlan-id 10;
unit 10 {
    description Backbone;
    vlan-id 10;
    family inet {
        filter {
            input from-backbone;
        }
        address 1.1.1.1/29;
    }
}
inactive: unit 30 {
    description To-Nats;
    vlan-id 30;
    family inet {
        address 2.2.2.2/28;
    }
    inactive: family inet6 {
        address 109f:27D8::1:2/126;
    }
}
unit 109 {
    vlan-id 109;
    family inet {
        filter {
            input from-shaper;
        }
        address 3.3.3.3/28;
        address 4.4.4.4/28;
    }
}
}