The invention provides a channel switching method, system and method for transmitting downlink data, including the channel switching method: the optical line terminal sends OLT ONU optical network unit carrying downlink data has the OLT identity information; ONU parses the downlink data receiving and obtain the current working status information when OLT; ONU detection of the current OLT identity information changes, ONU performs channel switching. ONU skips some of the existing registration activation steps, reducing the time required for the conversion of OLT and ONU from the main access path to the alternate path, and improving the communication efficiency between OLT and ONU.
【技术实现步骤摘要】
【技术保护点】
1.一种通路切换方法,其特征在于,包括:当前工作光线路终端OLT向光网络单元ONU发送携带有该OLT的身份信息的下行数据;ONU接收并解析所述下行数据,获得当前工作OLT的身份信息;当ONU检测到当前工作OLT的身份信息发生变化时,ONU执行通路切换。
【技术特征摘要】
【专利技术属性】
技术研发人员:张伟良,张德智,耿丹,
申请(专利权)人:中兴通讯股份有限公司,
类型:发明
国别省市:94[中国|深圳]
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