Disclosed is a method comprising: transmitting, by a cloud service control gateway (CSCG) positioned in an application stratum, a resource query to a network control gateway (NCG) positioned in a network stratum, wherein the resource query comprises a source address, a destination address list, and a network resource requirement. Also disclosed is a method comprising: receiving, by a network control gateway (NCG) positioned in a network stratum, a resource query from a cloud service control gateway (CSCG) positioned in an application stratum, wherein the resource query comprises source address, a destination address list, and a network resource requirement. Also disclosed is a method comprising: receiving, by a network control gateway (NCG) positioned in a network stratum, a resource reservation request from a cloud service control gateway (CSCG) positioned in an application stratum, wherein the resource reservation request comprises a destination address list and a first network resource requirement.