摘要
在资源利用率、执行时间、实现的复杂性和适用范围上,对现代通信网络中的几种典型保护恢复方式做了比较和分析,指出在光网络中,生存性更注重时效性和网络资源的效率,由此结合保护和恢复的优点提出了基于业务的保护方法.其中对1∶1、共享通道保护和环网中的通道保护方法做了详细的分析和研究,此外还具体提出了这几种业务保护方法实现的方案和流程.
Typical method of protection and restoration in current telecommunication network is analyzed carefully, and resource utilization, implementation time and complexity is compared and analyzed. In optical network, the implementation time and efficiency of the network resource are important in survivability. Taking the merits of various protection and restoration into account, a method for protection based on traffic can be proposed. 1:1, shared path protection method and ring network channel protection are analyzed and studied in detail. The proposed protection method based on traffic can not only meet the request of time of survivability but also make the protection granularity diversification, which providing more choice for protection. What is more, the realization scheme and process of these several traffic protection methods are proposed in detail.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2004年第1期40-44,共5页
Journal of Beijing University of Posts and Telecommunications
基金
国家自然科学基金重点项目(60132020)
国家"863计划"项目(2001AA122011)
关键词
全光网
保护恢复
业务保护
通道保护
生存性
Dense wavelength division multiplexing
Flowcharting
Network protocols
Protection
Quality of service
Resource allocation
Telecommunication services
