摘要
基于IEEE802.3-1985、IEEE802.3-2002版中对数据链路层的定义和描述,得到以太网协议模型中数据链路层的演进过程。据此,提出逻辑链路控制(LLC)子层与介质访问控制(MAC)子层在协议中的重要变化以及介质访问控制(MAC)子层中MAC帧格式的变化。针对这些变化,分析了其变化原因,很有讨论的必要。
Based on the definition and description of the data-link layer, which were in IEEE 802.3-1985 and IEEE 802.3-2002, we can obtain the gradual progress procedure of the data-link layer in Ethernet protocol. According to the progress procedure of the data-link layer,we can know the change of importance of LLC and MAC and find the change of frame format of MAC.In response of these changes,the reasons given in this paper have successfully discussed.
出处
《机械管理开发》
2013年第3期106-107,共2页
Mechanical Management and Development
