Transport interface for performing protection switching of telecommunications traffic

发明授权

US06188667B1 Transport interface for performing protection switching of telecommunications traffic 有权

标题翻译：用于执行电信业务保护倒换的传输接口

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专利标题： Transport interface for performing protection switching of telecommunications traffic
专利标题（中）： 用于执行电信业务保护倒换的传输接口
申请号： US09245806

申请日： 1999-02-05
公开(公告)号： US06188667B1

公开(公告)日： 2001-02-13
发明人: Martin Roberts , Thomas A. Potter , R. Douglas Howson, Jr.
申请人： Martin Roberts , Thomas A. Potter , R. Douglas Howson, Jr.
主分类号： H04L1224
IPC分类号： H04L1224

Transport interface for performing protection switching of telecommunications traffic

摘要：

A transport interface (10) provides add drop multiplex functionality and termination requirements for the transportation of network traffic. The transport interface (10) includes high speed units (12), broadband interfaces (16), and SONET formatters (18). Each high speed unit (12), broadband interface (16), and SONET formatter has redundant protection pairs (A and B). The high speed units (12), broadband interfaces (16), and SONET formatters (18) communicate with each other by in-band datalinks (40). The redundant protection pairs (A and B) communicate with one another by protection pair datalinks (42). The in-band datalinks (40) and the protection pair datalinks (42) provide protection switching within the transport interface (10) in the event of component failure. The in-band datalinks (40) are generated out of available or consumed bytes within either a section overhead (32) or a line overhead (34) of SONET OC-N frame (30). The protection pair datalinks (42) provide communication capability over a common control communications interface. The in-band datalinks (40) and the protection pair data links (42) work together to provide a smooth transition from one component to another in the event of a protection switch.

摘要（中）：

传输接口（10）为网络流量的传输提供添加分支复用功能和终止要求。传输接口（10）包括高速单元（12），宽带接口（16）和SONET格式化器（18）。每个高速单元（12），宽带接口（16）和SONET格式化器具有冗余保护对（A和B）。高速单元（12），宽带接口（16）和SONET格式化器（18）通过带内数据链路（40）彼此通信。冗余保护对（A和B）通过保护对数据链路彼此通信（42）。在组件故障的情况下，带内数据链路（40）和保护对数据链路（42）提供传输接口（10）内的保护切换。在SONET OC-N帧（30）的段开销（32）或行开销（34）之内，可用或消耗的字节产生带内数据链路（40）。保护对数据链路（42）通过公共控制通信接口提供通信能力。在保护开关的情况下，带内数据链路（40）和保护对数据链路（42）一起工作以提供从一个组件到另一个组件的平滑过渡。

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