论文部分内容阅读
宽带网络的引入使我们不得不面对一些新的测试问题,而这些问题过去只有在设计实验室中才会考虑。现在,设备制造厂家和网络运营者也都必须面对测试策略的实施,这样他们才能应付复杂的宽带技术。 宽带技术和业务,如帧中继和交换型多兆比特数据业务(SMDS),如今已经过完善的定义并得以实用。然而,更新一代的异步转移模式(ATM)技术已被公认为是能够把运送视频、话音、多媒体和局域网互连业务兼容于一体的技术。对于ATM和更高层的宽带协议族,有如下几项测试是最关键的:信令、一致性和互操
The introduction of broadband networks has forced us to confront some new test problems that were not considered in design labs. Equipment manufacturers and network operators must now also implement testing strategies so that they can cope with complex broadband technologies. Broadband technologies and services, such as frame relay and switched multi-megabit data services (SMDS), are now well defined and functional. However, the newer generation of Asynchronous Transfer Mode (ATM) technology has been recognized as a technology that enables the delivery of video, voice, multimedia and LAN interconnect services. For ATM and higher-level broadband protocol family, the following tests are the most crucial: signaling, consistency and interoperability