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Measuring method and system of packet loss

A measurement method and technology for a measurement system, applied in the field of packet loss rate measurement methods and systems, can solve problems such as incorrect packet loss rate measurement results and inability to provide Ethernet links, and achieve the effect of accurately measuring the packet loss rate

Active Publication Date: 2011-10-12
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, the above calculation process is based on the reliable transmission of the protocol frames used to measure the packet loss rate, while the Ethernet link cannot provide such a guarantee
Once the protocol frame is lost during transmission on the link, it will cause errors in the packet loss rate measurement results

Method used

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  • Measuring method and system of packet loss

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Embodiment 1

[0033] Figure 4 It is a preferred flow chart of the method for measuring the packet loss rate according to an embodiment of the present invention, which includes the following steps:

[0034] S402. The first end acquires the received frame sequence number of the current measurement response frame and the frame sequence number of the previous frame measurement response frame, wherein the current measurement response frame and the previous frame measurement response frame are the received Obtained by responding to the packet loss rate measurement message frame sent by the first end;

[0035] Specifically, S402 includes the following steps:

[0036] 1) The first end (that is, the active end, which is the initiator for single-ended packet loss rate measurement, and both ends for double-ended packet loss rate measurement) sends a packet loss rate measurement message (LMM frame or CCM frame), the measurement message frame carries the packet sending counter value and the frame num...

Embodiment 2

[0102] Figure 5 It is a preferred structural diagram of the measurement system of the packet loss rate according to the embodiment of the present invention, which includes: an acquisition unit 502, configured to acquire the frame sequence number of the current measurement response frame and the last measurement response frame received by the first end frame number, wherein, the current measurement response frame and the last measurement response frame are obtained by the second end responding to the packet loss rate measurement message frame sent by the first end; the judging unit 504 is connected to obtain Unit 502, for judging whether the difference between the frame number of the current measurement response frame and the frame number of the previous frame measurement response frame is 1; the calculation unit 506, connected to the judging unit 504, for determining whether the difference between the frame number of the frame number When the difference between the frame numb...

Embodiment 3

[0109] Figure 6 It is another preferred structural diagram of a packet loss rate measurement system according to an embodiment of the present invention, which includes: an operation and maintenance unit 602 , an Ethernet OAM unit 604 , an FPGA unit 606 , and a project support unit 608 .

[0110] The operation and maintenance unit 602 is responsible for receiving configuration commands from the administrator and displaying packet loss rate measurement results, such as initiating packet loss rate measurement, viewing packet loss rate measurement results, etc.;

[0111] The Ethernet OAM unit 604 is responsible for the sending and receiving of the protocol frame, and calculates the packet loss rate according to the count value in the protocol frame, for example, calculates the packet loss rate of the link according to the formula 3-10 in the embodiment 1-2, wherein the specific The process can refer to Embodiment 1, and will not be repeated here;

[0112] The FPGA unit 606 is re...

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Abstract

The invention provides a measuring method and system of packet loss, wherein the measuring method comprises the following steps: a first end obtains a received frame number of a current measure response frame and a frame number of a previous measure response frame, wherein the current measure response frame and the previous measure response frame are obtained by enabling a second end to respond to a packet loss measure message frame transmitted by a first end; the first end judges whether the difference between the frame number of the current measure response frame and the frame number of the previous measure response frame is 1 or not; and if the difference is 1, the first end figures out the packet loss according to the current measure response frame and counting information carried in the previous measure response frame; and if the difference is more than 1, the first end calculates to obtain the packet loss according to the current measure response frame and the counting information carried in the previous measure response frame as well as the difference between the frame numbers. According to the invention, the problem of inaccuracy in the packet loss measurement while the protocol frame loss exists in the prior art is solved so that a technical effect of accurately measuring the packet loss is realized.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and system for measuring packet loss rate. Background technique [0002] Ethernet technology is easy to use and low in price, and has been widely used in LAN, MAN and WAN. With the wide application of Ethernet, Ethernet operation, maintenance and management (OAM) technology is becoming more and more important. [0003] IEEE 802.lag (CFM) defines the OAM function and mechanism for the Ethernet service layer. ITU-T Y.1731 is a supplement and enhancement to IEEE 802.lag, which supplements the OAM function for error management. And focus on enhancing the OAM function for performance monitoring. In the IEEE 802.lag draft, the network administrator divides the network into several nestable maintenance domains based on the purpose of management and maintenance. A single maintenance domain such as figure 1 shown. [0004] figure 1 The maintenance domain in defines a serie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26
CPCH04L43/10H04B17/101H04L43/0835H04W24/00H04L43/50H04B17/0085
Inventor 张付友
Owner ZTE CORP
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