Message packet loss detection method and system

Abstract

The embodiment of the invention discloses a message packet loss detection method and a message packet loss detection system. The message packet loss detection method comprises that: a pseudowire transmitting end transmits a loss measurement message LMM message to a pseudowire receiving end, wherein the pseudowire comprises at least two equivalent paths, and the LMM message comprises first indication information corresponding to each equivalent path; the pseudowire transmitting end receives a corresponding loss measurement reply LMR message transmitted after the pseudowire receiving end sorts the LMM message, wherein the LMR message comprises second indication information corresponding to the first indication information; the pseudowire transmitting end sorts the LMR message according to the second indication information, and acquires the message packet loss rate of the pseudowire according to a value of a counter for the LMR message. Due to the embodiment of the invention, when a plurality of equivalent paths are present in PW, actually transmitted message flux of the PW can be detected. Therefore, the message packet loss rate of the PW is acquired.

Description

technical field [0001] The present invention relates to the technical field of communications, and more specifically, to a packet loss detection method and system. Background technique [0002] The Y.1731 protocol is generally deployed on user-side equipment (CE) or operator equipment (PE) nodes for end-to-end fast detection of service faults and performance monitoring. Y.1731 supports linkage with detection protocols such as 802.1ag, 802.3ah, and BFD (Bidirectional Forwarding Detection), and can transmit detection defects to remote devices or receive remote device defect notifications for service switching. [0003] When the user thinks that the purchased Ethernet virtual local area network (Virtual Local Area Network, VLAN) tunnel has a service quality problem, or the operator conducts routine service level agreement (Service Level Agreement, SLA) monitoring, you can use the Y.1731 defined performance testing tool. For example: by sending and receiving Continuity Check M...

AI Technical Summary

Problems solved by technology

[0006] Flow counting based on MEP is not only difficult to implement, but also inefficient

When there are multiple outgoing interfaces of the LSP on the PW side, the sending counter field of the loss measurement message (Loss Measure Message, LMM) message and the loss measurement reply (Loss Measure Response, LMR) message is based on the corresponding outgoing interface for traffic counting, Therefore, the value of the sending counter of LMM and LMR packets only represents the packet flow on a certain interface, but cannot truly represent the actual packet flow of the PW.

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