Credit Determination of Fibre Channel in Avionics Environment  

作　　者：LIN Qiang XIONG Hua-gang ZHANG Qi-shan 

机构地区：[1]School of Electronic and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

出　　处：《Chinese Journal of Aeronautics》2007年第3期247-252,共6页中国航空学报（英文版）

基　　金：National Natural Science Foundation of China (10477005)

摘　　要：Fibre channel （FC） is the main candidate architecture for ＂unified network＂. Flow control deals with the problem in which a device receives frames faster than it can process them. Credit is an important service parameter for fibre channel flow control. Configuring the credit reasonably can avoid buffer overflow in nodes. This paper derives the mathematic relationships among credit, bandwidth and message sets under real-time condition according as three main topologies of fibre channel, and proposes the credit determination and the optimal credit for typical message sets. This study is based on the features of hard real-time communications in avionics environment.Fibre channel （FC） is the main candidate architecture for ＂unified network＂. Flow control deals with the problem in which a device receives frames faster than it can process them. Credit is an important service parameter for fibre channel flow control. Configuring the credit reasonably can avoid buffer overflow in nodes. This paper derives the mathematic relationships among credit, bandwidth and message sets under real-time condition according as three main topologies of fibre channel, and proposes the credit determination and the optimal credit for typical message sets. This study is based on the features of hard real-time communications in avionics environment.

关 键 词：fibre channel TOPOLOGY LOGIN CREDIT hard real-time condition 

分 类 号：V26[航空宇航科学与技术—航空宇航制造工程]