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EPON的现状和趋势1.1G-EPON大规模敷设和应用。2.10G-EPON敷设和应用试验。3.涉及EPON的新标准即将出台。光纤化的优势网络物理通道损耗极小;采用无源光网的构造,从营运商前端到用户大楼之间的光纤线路上不设置任何有源设备和部件;网络可靠性、安全性大大提高。IP化的优势IP掩盖了各种物理网络及其逻辑访问机制的不同,让各种应用看到的网络到处一样,这是全世界网络互联的基础;IP帧是变长帧,其结构中包含用于路由寻址的IP地址和指示业务类型的TOS字节;以太帧是变长帧,北京凌云天博公司首席科学家林如俭
EPON status and trends 1.1G-EPON large-scale laying and application. 2.10G-EPON laying and application test. 3. The new EPON standards will be introduced soon. The advantages of fiber optic network physical path loss is minimal; the use of passive optical network structure, from the operator to the user premises building fiber optic lines do not set any active devices and components; network reliability, security greatly improved. The advantages of IP IP cover a variety of physical networks and logical access mechanisms for different applications so that the network seen everywhere, which is the basis for network interconnection around the world; IP frame is a variable length frame, the structure contains IP address for routing addressing, and TOS bytes indicating the type of service; Ethernet frames are variable-length frames; Lin Rujian, chief scientist at Beijing Lingyun Tianbo Co.,