Abstract:
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.
Key words:
Network Address Translation Protocol Translation(NAT-PT) mechanism,
topology limitation,
dynamic routing,
information sharing,
pseudo-route
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。
关键词:
NAT-PT机制,
拓扑局限性,
动态选路,
信息共享,
伪路由
CLC Number:
LU Hai-zhou; WANG Zhen-xing; CHENG Zhi-nian; GENG Nan-nan. NAT-PT Mechanism Supporting Dynamic Routing[J]. Computer Engineering, 2008, 34(17): 108-110.
陆海洲;王振兴;程之年;耿楠楠. 支持动态选路的NAT-PT机制[J]. 计算机工程, 2008, 34(17): 108-110.