支持动态选路的NAT-PT机制  

NAT-PT Mechanism Supporting Dynamic Routing

作　　者：陆海洲[1] 王振兴[1] 程之年[1] 耿楠楠[1] 

机构地区：[1]解放军信息工程大学信息工程学院,郑州450002

出　　处：《计算机工程》2008年第17期108-110,共3页Computer Engineering

摘　　要：孤立的多个NAT-PT无法为会话提供较短的路径,NAT-PT发生故障会导致经过该NAT-PT的会话中断和IPv4地址的浪费。该文提出一种支持动态选路的NAT-PT机制,通过NAT-PT间的伪路由发布和信息共享,使多个NAT-PT协同工作,互为同步/友好NAT-PT,为报文提供动态选路支持,实现报文路径的优化和故障NAT-PT负载的实时迁移。Multiple isolated Network Address Translation Protocol Translation（NAT-PT） can not offer shorter path for a session, and all sessions via one NAT-PT may be broken and the IPv4 addresses may be wasted when NAT-PT failing. A Dynamic Routing NAT-PT（DRN） mechanism is presented to coordinate multiple NAT-PT working. With the pseudo route information which is broadcasted by DRN and shared information among NAT-PTs, NAT-PT becomes synchronous/friendly NAT-PT each other and achieves dynamic routing. A more appropriate NAT-PT is chosen to make path length of a session shorter and the load of a failure NAT-PT can be moved to a working one automatically.

关 键 词：NAT-PT机制 拓扑局限性 动态选路 信息共享 伪路由 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]