Cable modem designed for connecting subscriber facilities data flow control between cable modem and subscriber facility

A cable modem for connecting Customer Premises Equipment (CPE) includes a Media Access Control (MAC) layer controller, a Logical Link Control (LLC) bridge ( 113 ) interacting with the MAC layer controller, an IP stack processing IP frames and interacting with the LLC bridge ( 113 ), CPE interfaces ( 115, 116 and 117 ) and a multiplexer ( 114 ) of Customer Premises Equipment (CPE) interfaces linked to the CPE interfaces and to the LLC bridge ( 113 ). The CPE interfaces ( 115, 116 and 117 ) communicate with the multiplexer ( 114 ) through appropriate functions. The multiplexer ( 114 ) has functionality allowing for servicing the flow of frames between the cable network and the interfaces linked to it, directing the received frames to appropriate interfaces.