To address the disadvantages of the EPON+EOC technical scheme used in the bidirectional reformation of
HFC network and broadband access application, this paper proposes the concept of Ethernet Passive
Electronic Network(EPEN) based on MPCP protocol. All kinds of modulated EOC technologies are based on
CSMA/CA half-duplex mode MAC protocol, showing low efficiency in access network application. Learning
from EPON point to multi-point (P2MP) control protocol, this paper originally proposes the concept of
full-duplex EPEN based on MPCP protocol for upstream. This paper describes the network architecture of
EPEN, and discusses the technical implementation scheme of the EPEN system. At present the core
technologies and implementation of software and hardware of EPEN are being studied.