摘要
分布式计算环境中计算机间高可靠、高精确的协同工作,时间同步是关键和基本的问题。基于ORBUS时间系统提出的应用NTP/SNTP协议的网络时间同步组织方式,能够有效减少跨网段时间同步节点数,降低网络开销。通过深刻分析和比较NTP和SNTP协议的网络时间同步方式,论证了在小型局域网中,SNTP协议的同步方式具有高精度、高性能的特点;NTP协议的同步方式更加适用于复杂的分布式网络中,以高精度和高稳定度进行网络时间同步。因此应用NTP/SNTP协议的网络时间同步组织方式对任何一种复杂的分布式网络可以得到很好的解决。
In a distributed environment,computers work cooperatively with high reliability and accuracy,in which time synchronization acts as a fundamental role.A time synchronization network based on ORBUS-Time system,which follows NTP/SNTP protocol,can reduce the number of cross-subnet time synchronization nodes effectively to play down network overhead. Comparison between NTP and SNTP as well as detailed analysis shows that SNTP embodies high accuracy and good performance in small-scaled LAN while NTP suits better in complicated distributed WAN with its high accuracy and good stability.Therefore, time synchronization network presented in this paper can be widely used in the building of various distributed applications.
出处
《计算机工程与应用》
CSCD
北大核心
2007年第2期164-167,共4页
Computer Engineering and Applications
基金
江苏省高校高新技术发展资助项目(JH02-074)。
