ATM测试仪中业务分布模型的研究  

The Research of service distributed model in asynchronous transfer mode tester

作　　者：刘宇[1] 

机构地区：[1]中国电子科技集团公司第四十一研究所,青岛266555

出　　处：《电子测量技术》2011年第10期113-115,共3页Electronic Measurement Technology

摘　　要：ATM是1种建立在电路交换和分组交换基础上面向连接的包交换技术,是解决各种不同类型信息联合传输问题的好方法。对ATM网络传输性能测试而言,为能更加准确地反映网络的实际性能,需要建立相应的业务流模型来模拟网络实际应用时的各种业务流。主要介绍了异步传输模式(ATM)测试技术中用得最多、最能精确刻划ATM业务流的随机统计分布模型—随机间隔分布模型及三态马尔可夫调制泊松过程(MMPP)模型,介绍了如何生成满足分布模型要求的分布参数。并给出了这2种分布模型的实验结果。ATM is a connection-oriented packet-switched technology based on circuit-switched and packet-switched,and it is also a good method for multi-information transport.To ATM transport performance testing,in order to reflect the net＇s real performance precisely,the service stream model needed setup for various service streams when net bring into service.We present the random-statistic distributed model-random-interval and three markov-modulated poisson process model,which are the most using in the asynchronous transfer mode tester and the most precise depicting the flow of ATM service.Using random-interval cell model and three-markov modulate possion process model as examples to illuminate how to produce the distributed parameter for the distributed model requirement,and then we get give the experimenting results of these two distributed model wereg.

关 键 词：异步传输模式 泊松 随机间隔 业务 马尔可夫调制泊松过程 

分 类 号：TN915.2[电子电信—通信与信息系统]