以太网中双绞线超长布线的论证和实践

摘要

In the series of standard IEEE802.3 Ethernet cabling,the length of five twisted pair is limited to 100 meters,when the distance is long,it will cause network failure.To solve this problem,this paper analyzes the CSMA/CD and twisted-pair performance,beyond the transfer length limit for analysis.Finally, by measuring that distance in a certain environment,the use of cheap long twisted-pair cable equipment replacement cost feasibility.%在IEEE802．3系列标准以太网的布线中，五类双绞线的长度限制在100米内，当距离超长时，会造成网络故障。为了解决这个问题，本文主要分析CSMA／CD和双绞线的性能，对超出传输长度的限制进行分析。最后还通过实测证明在一定环境距离内，超长使用廉价双绞线替代高成本光缆设备的可行性。