基于OMCI技术的组播的研究与应用

Research and Application of Multicast Based on OMCI Technology

在吉比特无源光网络(GPON)系统设备的开发和互通测试中,重点实现组播技术和ONT管理控制接口(OMCI)协议的方法。基于GPON系统对组播报文解析,利用HASH算法配置芯片硬件表项,讨论组播数据报文的转发的实现技术。OMCI是GPON系统中的一种配置传输通道,通过在光线路终端(OLT)与光网络单元(ONT)之间建立专有的通道传输OMCI帧消息。ONT对收到的OMCI帧进行解析,并且初始化MIB库。最后调用实体API函数对组播进行配置,分析验证组播模型一致性,实现该模块局端管理控制的智能化。

In the development and interoperability testing of Gigabit Passive Optical Network （GPON） system equipment, heuses on analysing and debugging IGMP protocol and ONT management and control interface （OMCI） protocol. Parses multicast packets and uses HASH algorithm to configure chip hardware entries achieved the multicast data packet forwarding. OMCI is a transmission channel fi）r GPON system configuration, the OMCI frame message is transmitted by a proprieta GEM PORT between the optical line tenninal（OLT） and optical network terminal （ONT）. In the design and development IGMP module, combines OMCI entities of the module configuration and analyzes to verify the consistency of the multieast model. Realizes remote management control and efficiency in IGMP module.