公开(公告)号：US20120127868A1

公开(公告)日：2012-05-24

申请号：US13376722

申请日：2009-09-02

Applicant: Bin Wang ,  Ting Ao

Inventor： Bin Wang ,  Ting Ao

IPC: H04L12/26

CPC classification number: H04L41/0663 ,  H04L43/0811

Abstract: The present invention discloses a method for detection of Ethernet segment protection, and this method includes: configuring a detection point in two segment protection domains with a shared link; configuring a joint monitor group on the shared link of said two segment protection domains; and judging whether the configured detection point and the joint monitor group receive a Continuity Check Message (CCM) in a certain period, if the CCM message is received, determining a detected segment corresponding to this CCM message is normal; if the CCM message is not received, determining the detected segment corresponding to this CCM message has a fault. The present invention further discloses a system for detection of Ethernet segment protection, including: a detection point configuration unit, a joint monitor group configuration unit and a judgment unit. The method and system of the present invention can solve the problem of the segment protection in the case of the multi-node fault and greatly improve the network performance.

Abstract translation: 本发明公开了一种检测以太网段保护的方法，该方法包括：通过共享链路在两段保护域中配置检测点; 在所述两个段保护域的共享链路上配置联合监视组; 并且如果CCM消息被接收，则判断配置的检测点和联合监视组是否在一定时间段内接收到连续性检查消息（CCM），确定与该CCM消息相对应的检测到的段是正常的; 如果没有接收到CCM消息，则确定与该CCM消息相对应的检测到的段具有故障。 本发明还公开了一种用于检测以太网段保护的系统，包括：检测点配置单元，联合监视组配置单元和判断单元。 本发明的方法和系统可以解决多节点故障情况下的分段保护问题，大大提高网络性能。

公开(公告)号：US20130088976A1

公开(公告)日：2013-04-11

申请号：US13805812

申请日：2010-12-15

Applicant: Ting Ao ,  Yuehua Wei ,  Shaoyong Wu

Inventor： Ting Ao ,  Yuehua Wei ,  Shaoyong Wu

IPC: H04L12/26

CPC classification number: H04L43/0823 ,  H04L41/0659 ,  H04L41/0668 ,  H04L43/00 ,  H04L43/0811 ,  H04L43/10

Abstract: The disclosure provides a method for detecting a mismatch fault and a Maintenance Endpoint (MEP). The method includes: determining whether there is a Traffic Engineering Service Instance (TESI) configured in a segment, setting a Present Traffic in Segment (PTS) variable, and setting a value of a PTS field included in a Connectivity Check Message (CCM) sent from a Maintenance Endpoint (MEP); receiving the CCM by the MEP, when the value of the PTS field included in the CCM does not coincide with that of the PTS variable, setting, by the MEP, a first mismatch fault indication variable mmCCMreceived to be set; when the first mismatch fault indication variable mmCCMreceived remains set after a first preset time period expires, detecting that a mismatch fault occurs. The method finds timely the mismatch problem occurred in the segment protection of Provider Backbone Bridging-Traffic Engineering (PBB-TE), thereby preventing data loss and service interruption caused by the occurrence of mismatch.

Abstract translation: 本公开提供了用于检测失配故障和维护端点（MEP）的方法。 该方法包括：确定是否存在在段中配置的业务工程服务实例（TESI），设置当前业务在段（PTS）变量中，并且设置包括在已发送的连通性检查消息（CCM）中的PTS字段的值 从维护端点（MEP）; 当MEP包含的PTS字段的值与PTS变量的值不一致时，由MEP设定接收到要设置的第一不匹配故障指示变量mmCCM; 当第一不匹配故障指示变量mmCCM接收在第一预设时间段之后保持置位时，检测到发生不匹配故障。 该方法及时发现提供商骨干桥接流量工程（PBB-TE）的段保护中出现的不匹配问题，从而防止由于错配发生而导致的数据丢失和业务中断。

公开(公告)号：US08971175B2

公开(公告)日：2015-03-03

申请号：US13574237

申请日：2010-12-14

Applicant: Ting Ao ,  Yuehua Wei

Inventor： Ting Ao ,  Yuehua Wei

IPC: H04L12/24 ,  H04L12/701 ,  H04L12/707 ,  H04L1/22 ,  H04L1/00

CPC classification number: H04L41/0663 ,  H04L1/22 ,  H04L12/462 ,  H04L12/4633 ,  H04L41/0668 ,  H04L45/00 ,  H04L45/24 ,  H04L2001/0096

Abstract: This disclosure discloses a method for implementing protection group overlay and a method for implementing Ethernet protection switching based on the protection group overlay. The method for implementing Ethernet protection switching based on the protection group overlay comprises: when the fault of TESI is detected by multiple IPG which protect the same TESI, only one IPG of the multiple nested IPGs performs protection switching. This disclosure further discloses a system for implementing Ethernet protection switching based on the protection group overlay, comprising a protection switching performing unit, configured to when a fault of a TESI is detected by multiple IPGs which protect the TESI, only one IPG of the multiple nested IPGs performing protection switching. Application of the method and system of this disclosure implements protection for key protected path through protection group overlay, and can achieve effects of saving network resource and increasing utilization rate of network resource.

Abstract translation: 本公开公开了一种实现保护组覆盖的方法，以及基于保护组覆盖实现以太网保护倒换的方法。 基于保护组覆盖实现以太网保护倒换的方法包括：当保护相同TESI的多个IPG检测到TESI故障时，多个嵌套IPG中只有一个IPG进行保护倒换。 本公开进一步公开了一种用于实现基于保护组覆盖的以太网保护倒换的系统，包括保护切换执行单元，被配置为当保护TESI的多个IPG检测到TESI的故障时，只有多个嵌套的一个IPG IPG执行保护切换。 本公开的方法和系统的应用通过保护组覆盖实现对关键保护路径的保护，可以实现节约网络资源的效果，提高网络资源的利用率。