关键词: lOG/40G/1006以太网，端到端模型，服务质量，时延，队列调度算法

Abstract: With the rapid development of the Ethernet technologies, Ethernet has become one of the core technologies in future communication domain. And user experience may be affected by QoS parameters of services typically include delay,jitter,packet loss rate and so on. For real-time audio and video services, end-to-end delay of data is most critical.Based on the exist Ethernet standards,summarized the main factors of end-to-end delay,and theoretical analysis of different delayes on the proportion of totoal delay. Finally carried out a simulation model designed to lOG/40G/1006 Ethernet, which proves the design is feasible and correct.

Key words: lOG/40G/1006 Ethernet,End-to-end model,Quality of Service,Delay,Queue scheduling algorithm