局部网络的控制结构基本概念及BLS

CONTROL CONSTITUTION AND BLS——THE NEWESSENTIAL CONCEPTS OF LAN

本文提出和定义了计算机局部网络的控制结构的基本概念。讨论了它与IEEE 802标准的MAC的区别和联系。认为控制结构和拓扑结构一起,组成了局部网络完整的结构概念,以此本文进一步提出了局部网络的结构分析参考模型,它建议了对局部网络结构进行考察、技术划分、评估的统一方法。 本文还提出和定义了局部网通信的位长度系列概念,包括有效位长度、无效位长度、视在位长度和位长度因素,该概念对通信过程进行了抽象和划分,建立了网络性能参数的普遍联系。其中位长度因素反映了通信效率的大小。 最后,本文略述了以上新概念的应用之一:建立网络性能分析模型。

A new concept of Lan, Control Constitution (CC), is advanced. The differences and relations between CC and MAC from IEEE 802 Standard are discussed. Control Constitution is a structure logically paralleled with Topological Structure, and their integration forms a new concept of LAN. Based on CC, a reference model for LAN structure analysis is proposed. Another new concept of LAN communication, Bit Length Series (BLS), is also advanced. It consists of Effective, Ineffective, Viewing Bit Length and Bit Length Factor. It builds the relations among the LAN performance parameters and the communication efficiency is indicated by BLS. As the application of these new concepts, an LAN performance analysis model is briefly introduced.