跪求汉译英,各位大虾帮忙啊

奔走的小白象 2024-11-30 02:40:11
最佳回答
how to choose the standard access network which ** cons**tent with carrier-grade? at present, there are two ways in the development of communication network. first, transm**sion level shows the development trend of all-optical network. from ason technology of the core layer to fttp technology of access layer, all indicates the evolution from network carrier to the light. another ** the integration of business which takes ip as the core. internet’s development makes ip become the ideal business bearer protocol. mstp, rpr, mpls and other technologies are all the results of integration of traditional transm**sion network and packet-switched network. the rapid development of iptv and volp also illustrates the development direction of ip bearer. therefore, we should grasp two aspects of technology and market trends for the construction of optical access network and choose reasonable technology to build access network.although the original lan can meet the requirement on broadband data communication, it can not meet the requirement on business support, bandwidth, network management, reliability and stability because it can not only deal with interactive video service, but also broadband data servide and volp voice service. so a network that can support multi-service and cover users with broadband becomes urgent. thus, on the one hand we can make use of ex**ting resources of five wire lines to enhance their own access technology; on the other hand we can solve the need of high-bandwidth service and future new service. as a fiber-based access, epon lan provides a fast and economical way to achieve fttb broadband access network.as a new optical access network technology, epon ** fit for fttb broadband fiber access network. from the operator’s point of view: the passivity of epon transm**sion can reduce the cost of construction, management and operation, improve return on investment and increase new revenue opportunities. the architecture of epon network ** similar to the star-shaped structure of hfc network. on the fiber-to-d**trict bas** of the original hfc network, it ** quick to build epon network so that operators can quickly and effictively conduct business and easily expand network. epon can provide high-bandwidth which can meet users’ application need for the growing bandwidth, ensuring the reliable network resources for operators to conduct multi-service. with good compatibility epon network can integrate well with ex**ting mainstream of ip metro network. compared with other fttx technology, epon ** a little economical by which we can reduce investment and long-term construction cost. 20210311
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