EPON系统中的LLID技术  

Logical link identifier in EPON

作　　者：尹宝青[1] 何岩[1] 陆正东[1] 

机构地区：[1]武汉邮电科学研究院,武汉430074

出　　处：《光通信技术》2006年第8期25-27,共3页Optical Communication Technology

摘　　要：通过在非对称消息模式下对EPON系统的研究,分别讨论了在一个LLID和多个LLID的情况下E-PON系统如何保证提供多种业务和基于每个队列来满足SLA,并给出了具体解决方案。The paper finds that EPON systems using single-LLID ONUs are in effect delegating to the ONUs the task of scheduling the various queues within the upstream time slot, thus requiring ONUs to be SLA-aware and capable of traffic shaping. A superior solution is described, in which a LLID is assigned for each queue and all EPON intelligence is concentrated at the OLT. We show that with this second architecture dramatic improvements to the system＇s efficiency, flexibility, interoperability, and cost-effectiveness are obtained.

关 键 词：以太网无源光网络 业务等级协议 逻辑链路标识 

分 类 号：TN929.1[电子电信—通信与信息系统]