A kind of path connectivity detection method and device

Abstract

The embodiment of the present invention provides a path connectivity detection method and device, including: the receiving node receives the echo request Echo Request sent by the sending node, the Echo Request includes the identifier of the service function SF, and the message header of the Echo Request Including path information to the SF, the path information including the segment identifier SID of the SF; when the receiving node determines that the SF is associated with the receiving node according to the SF identifier, judge the receiving node Whether the stored SID corresponding to the SF is consistent with the SID of the SF included in the path information; When consistent, it is determined that the path to the SF is connected, and the receiving node sends a first echo response Echo Reply to the sending node, and the value of the return code carried in the Echo Reply is used to indicate the path to the SF connected. The invention realizes effective detection of path connectivity.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular to a path connectivity detection method and device. Background technique [0002] With the increase of service types of operators, in order to provide better service experience, it is necessary to deploy a service routing network, so Service Function Chaning (SFC) technology has been developed. Business chain technology can link multiple business functions together, providing a basis for flexible business processing. Such as figure 1 As shown, the service classifier (ServiceClassifier) ​​classifies the data flow entering the service routing domain, and then forwards the selected data flow along the service function path (Service Function Path, SFP) corresponding to the SFC. In the process, The service function (Service Function, SF) passed by the SFP performs corresponding service processing on the data flow. The SF may be a module inside the se...

AI Technical Summary

Problems solved by technology

However, for the SFC scenario, the sender of the detection command (such as the classifier) ​​is usually not directly connected to the receiver SF, so when the IPv6 address is used to represent the SN or SID of the SF, the IPv6Ping command cannot be used to detect the path connectivity

[0005] Therefore, there is no method and device in the prior art, which can realize the detection of path connectivity in the SR network, so as to realize the OAM function in the SR-SFC network

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