摘要
IPv6是下一代网络解决IP地址空间紧张问题和满足用户对网络服务质量要求的关键技术.下一代IPv6网络需要新服务和新设备.新设备和协议需要在IPv6环境验证和推广.网络模拟器是验证的有效工具.设计了同时支持IPv6和IPv4的网络模拟器,实现对带宽、传输延迟、丢包率及延迟抖动的控制和可再现性.在Windows平台进行了实现,并在Cernet2上进行了实验.结果表明该模拟器可产生精确控制的IPv6环境,为协议和设备开发提供了基础.
IPv6 is considered as the key technology of NGI to solve the address space problem and meet the QoS requirements of users. With the development of NGI, new service and equipments are required to develop. It is necessary to test the new protocols and network equipments extensively in IPv6 environment. This paper proposes an accurate network emulator which supports both IPv4 and IPv6 protocols. In our IPv6 testbed, we implement the emulator on Windows platform and emulate various network characteristics and conditions including bandwidth, delay packet loss and jitter. Compared with the expected values, results are acceptable. The experiments in CernetⅡ show that the emulator does provide the real-time control and change on the parameters of IPv6 network conditions effectively. It also gives enough accuracy and more satisfactory convenience to the development and test work for the new protocols.
出处
《小型微型计算机系统》
CSCD
北大核心
2009年第2期215-218,共4页
Journal of Chinese Computer Systems
基金
国家自然科学基金项目(90604013)资助
