technology’s application is expanding with its development. Currently

IP network supports non-real-time data services quite well

and IP network’s performance for information transfer must be considered in order to support various real time services and multimedia services. Based on research and analysis on ITU-T IP network performance standards and real solutions to engineering technical issues

this essay discusses IP network Information transfer performance

including IP service performance description reference model

IP service performance test environment and conditions

IP service performance parameter and IP service availability

etc.