Method, system and device for detecting packet loss rate

A detection method and technology of a detection device are applied in the field of network communication and can solve the problem of inability to detect the LSP packet loss rate and the like

Inactive Publication Date: 2009-12-16
ZTE CORP
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Problems solved by technology

[0007] The embodiment of the present invention provides a packet loss rate detection method, system and device, which solves the problem that the MPLS OAM technology in the prior art cannot detect the packet loss rate on the LSP

Method used

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  • Method, system and device for detecting packet loss rate
  • Method, system and device for detecting packet loss rate

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Embodiment 1

[0092] In the packet loss rate detection method provided by Embodiment 1 of the present invention, the head node sends at least two performance detection messages carrying the real-time statistical value (first statistical value) of the data message sent on the detected LSP to the tail node, and the tail node receives After receiving the data packet, obtain the statistical value of the data packet received by itself from the detected LSP at the receiving time, and return the performance detection response message through the configured reverse LSP. The head node receives at least two performance detection responses according to The statistical value (the first statistical value) of the data message sent by the head node contained in the message and the statistical value (the second statistical value) of the data message received by the tail node, calculate the packet loss rate in the monitoring period, In this way, the detection of the packet loss rate within a certain period o...

Embodiment 2

[0141] The packet loss rate detection method provided by Embodiment 2 of the present invention is different from that in Embodiment 1 in that the tail node calculates the packet loss rate. After the head node sends at least two performance detection messages, the tail node counts the second statistical value of the data message received by itself each time it receives the performance detection message, and the tail node is based on the received at least two performance detection messages. The first statistical value and the corresponding second statistical value contained in the message are calculated to obtain the packet loss rate in the current monitoring time period. Its process is as follows Figure 5 As shown, its execution steps are as follows:

[0142] Step S201: the head node triggers a performance detection function.

[0143] The situations that may be triggered are specifically the same as step S101, and will not be repeated here.

[0144] Step S202: the head node...

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Abstract

The invention discloses a method, system and device for detecting packet loss rate. The method comprises that a head node transmits performance detection packet through a detected LSP, wherein a first statistic value of data packet transmitted to the LSP from a transmitting time is carried; a tail node receives performance detecting packet, and then obtains a second statistic value of data packet received from the LSP; the tail node returns the performance detecting response packet carrying the first statistic value and the second statistic value, the head node calculates packet loss rate in current monitoring time range according to received at least two performance detecting response packets; or the tail node calculates packet loss rate in current monitoring time range according to the first statistic value and respectively corresponding second statistic value included in the received at least two performance detecting response packets, and transmits to the head node. By using the method and system, packet loss rate of each LSP in an MPLS network can be conveniently detected, healthy condition of the LSP can be real-time monitored, so as to know changes in time and provide basis for more accurate switching adjustment.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a method, system and device for detecting packet loss rate in a Label Switched Path (LSP) of a Multi-Protocol Label Switching (MPLS) network . Background technique [0002] Operations, Administration and Maintenance (OAM) functions are very important in public telecommunication networks, especially for networks that need to provide quality of service guarantees. OAM can simplify network operations, test network performance and reduce network operating costs. On the one hand, network OAM needs to ensure the connectivity of the network, and on the other hand, it must ensure that the network runs in a healthy state, that is, all performance indicators on the network are guaranteed to be within a certain range. As a key bearer technology of a scalable next-generation network, the MPLS network needs to provide multi-service capabilities with Quality Of Service (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L12/26H04L12/56H04L29/06H04L47/32
Inventor 王玲
Owner ZTE CORP
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