公开(公告)号：US20130155874A1

公开(公告)日：2013-06-20

申请号：US13681205

申请日：2012-11-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li SHA ,  Ling BAN ,  Jinyong REN ,  Huisheng LI

IPC: H04L12/26

CPC classification number: H04L43/0811 ,  H04L12/42 ,  H04L45/50

Abstract: Embodiments of the present invention disclose a method, an apparatus, and a system for detecting a multi-protocol label switching ring network. The method includes: initiating, by a ring ingress node, a detection request packet; determining a ring label switched path LSP forwarding equivalence class FEC corresponding to the detection request packet, and encapsulating the ring LSP FEC into the detection request packet; sending the detection request packet after encapsulation to a ring egress node; and determining whether a detection reply packet sent by the ring egress node is received; if yes, determining that the ring LSP is connected; otherwise, determining that the ring LSP is not connected. Therefore, the embodiments of the present invention are able to directly detect connectivity of a ring LSP, solving the problem in the prior art where an interference exists during detection of the ring LSP connectivity.

Abstract translation: 本发明的实施例公开了一种用于检测多协议标签交换环网的方法，装置和系统。 该方法包括：由环入节点发起检测请求报文; 确定与所述检测请求分组相对应的环标签交换路径LSP转发等价类FEC，并将所述环LSP FEC封装在所述检测请求分组中; 将封装后的检测请求报文发送到环出口节点; 以及确定是否接收到所述环出口节点发送的检测应答分组; 如果是，则确定环路LSP已连接; 否则，确定环路LSP未连接。 因此，本发明的实施例能够直接检测环形LSP的连通性，解决了在检测环路LSP连通性期间存在干扰的现有技术中的问题。