Linux-based The Eoc Master Software Design

Accompanied by radio and digital process with the digital television variety of business to speed up development, the construction of broadband, bi-directional cable TV network to provide multimedia services for the Internet, VoD, and interactive television, cable TV subscribers have been widely recognized. China's radio and television coaxial cable Cable access cover up to175million users, is to cover one of the most widely used cable lines, coaxial cable has a wide frequency, high-bandwidth characteristics, so carrying on the existing coaxial network to Ethernet, IP service, the Ethernet Over Cable, become the focus of a variety of techniques.This paper introduces the research background and significance, and then introduced the EOC technical principle, analysis of EPON+EOC technology characteristics and application scenes, as well as the EPON's many advantages and large-scale commercial, from the lead-out is badly in need of solving" the last100meters of the so-called" user distribution network solutions, and the EOC solution is numerous, compared with the mature backbone transmission technology of EPON, EOC solution has not yet developed the standard. Therefore, this article for the current mainstream technology of passive EOC and active EOC, active EOC is based on high frequency (MoCA, WiFi frequency reduction), low frequency (PLC/HomePlug AV, HomePNA) for a detailed analysis and comparison, and elaborated the EOC system how to apply EPON system to complete the HFC network transformation.In the light of the mainstream HomePlug AV solutions are analyzed in detail and the application interface function (API), and according to this scheme, the design of main control software of the CLT system software structure and program flow, and system realization and basic test, and emphatically introduced the SNMP network management agent transfer, use and use Mib browser.The SNMP application in EOC system plays two important roles, management and agent. The equivalent of C/S architecture in which the client and server. The introduction of SNMP, SNMP's management information and management model and SNMP's operation were discussed in detail. For the use of the most widely used SNMP tool for installing and using net-snmp gives a clear grafts and methods of use.Finally, using the Mib browser through the SNMP network management protocol read the main configuration, the system test results show.