IP分片重组算法(RFC815)的实现及其改进  

Implementation and improvement of IP datagram reassembly algorithms (RFC815)

作　　者：林绍太[1] 张会汀[1] 郑力明[1] 

机构地区：[1]暨南大学信息科学技术学院,广东广州510632

出　　处：《计算机工程与设计》2005年第4期911-913,共3页Computer Engineering and Design

基　　金：广东省科技计划基金项目(2003C101038)

摘　　要：分片与重组是IP机制之一。IP数据报可以在网关处被分片,各分片分别送达。目的主机的IP层将接收到的所有分片重装成一个完整的数据报。介绍了IP分片重组的原理,在此基础上介绍了RFC815算法的实现,并对重组算法做了优化改进,在保证安全性的同时提高算法的效率。One of the mechanisms of IP is fragmentation and reassembly. IP packets can be fragmented at the gateway, and then be sent to the destinaion. The IP layer at the receiving host must accumulate these fragments to completely reconstitute the original datagram. The concept of IP datagram assembly is described, based on which theimplementation of RFC815 is introduced, and then on the premise of security, efficiency is improved by ameliorating management of hole descriptor.

关 键 词：网络安全 分片重组 RFC815 TCP/IP协议 IP机制 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术] TN915.04[自动化与计算机技术—计算机科学与技术]