vlan basic configuration

{master:0}
jkriker@qfx5110-18> show configuration vlans
vlan1230 {
    vlan-id 1230;
}

{master:0}
jkriker@qfx5110-18> show configuration interfaces xe-0/0/0
unit 0 {
    inactive: family inet {
        address 10.10.1.2/24;
    }
    family ethernet-switching {
        interface-mode access;
        vlan {
            members vlan1230;
        }
    }
}

{master:0}
jkriker@qfx5110-18> show configuration interfaces xe-0/0/2
unit 0 {
    inactive: family inet {
        address 10.10.10.1/24;
        address 10.10.20.1/24;
    }
    family ethernet-switching {
        interface-mode access;
        vlan {
            members vlan1230;
        }
    }
}