C2.0.The paper is based on the National High-tech R&D Program–“Research and Chip Design of a High performanceBroadband Access Technology Over Coax”.Firstly, HINOC protocol standards and key mechanism in MAC layer is introduced and analyzed. Secondly, accordingto the requirementof project, the HINOC2.0 1G verification system is built and maintained and key modulesare optimized. Thirdly, HINOC2.0 C model is designed for UVM verification. Finally, the simulation parative analysis of 1G verification system and C model demonstrates the correctness and feasibility of the designed systemand the rationality to achieve the expected goals.Keyword:HINOC2.0,1G verification system,C ModelType ofDissertation: AppliedBasic Research