基于信令降频码方法的信令寻径式光纤交换机的研究  

Research on Token-Routing Technology High-speed Fiber Channel Switch Based on Reducing-frequency Code

作　　者：徐代阳[1] 冯萍[1] 陈艳平[1] 姚荦[1] 

机构地区：[1]西北工业大学计算机学院,陕西西安710072

出　　处：《计算机测量与控制》2009年第12期2488-2490,2503,共4页Computer Measurement &Control

摘　　要：信令寻径式高速光纤交换机需要使用大量"串/并"转换器件提取信令来实现对信道的控制,这使得交换机的底板面积十分庞大,无法检测BGA封装焊接质量;针对以上问题,提出了一种使用特殊的降频码对信令进行编码,成倍地降低信令的频率,采用普通的FPGA器件即可提取信令,取代了大量占线的"串/并"转换器件,减少了PCB面积和降低了成本;并在此基础上给出了高速光纤交换机的解决方案;目前,基于信令降频码方法的信令寻径式光纤交换机已经调试成功,性能稳定,运行状态良好。Aimming at the Fiber channel switched network developed on Token Routing technology extracts the information of token with the serial to--parallel converter, a method using the token--routing Fiber channel switch was proposed in the present paper. In this method, the switch extracts the information of token with the average FPGA in place of serial--to parallel converter. So it saves a lager number of area of the PCB. At the same time , The method for this switched network is designed and the scheme of the high--speed Fiber channel switch is dissertated. Up to now, this Token--Routing technology high--speed Fiber Channel switch based on the reducing--fre- quency code has been implemented successfully and performs well.

关 键 词：交换机 信令降频码 光纤通道 信令寻径 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]