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Route tracing method, apparatus thereof, and system thereof

A routing and purpose technology, applied in the field of data communication, can solve the problems of long time, inability to determine the intermediate node in failure, long time required, etc., to achieve the effect of fast detection

Inactive Publication Date: 2011-11-23
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0008] However, the existing traceroute technology uses a serial method to detect intermediate nodes, and each time a detection message is sent, it needs to wait for a response. In this way, the entire detection process needs to be waited multiple times, which takes a long time
In the case of frequent network failures but rapid recovery, due to the long detection time required by the existing route tracking technology, the detection may not be completed after the failure recovery, resulting in the inability to determine the failed intermediate node

Method used

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  • Route tracing method, apparatus thereof, and system thereof
  • Route tracing method, apparatus thereof, and system thereof
  • Route tracing method, apparatus thereof, and system thereof

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Embodiment Construction

[0043] The present invention provides a method for route tracking, refer to image 3 and Figure 4 As shown, the method includes:

[0044] Step 401, the source node simultaneously sends a set number of detection messages containing identification information according to the detection trigger signal;

[0045] Step 402 , the source node obtains the IP address, identification information and response time of each intermediate node that the probe message arrives at according to the timeout message received by the source node from each intermediate node response within a set time.

[0046] The detection message is a detection message in UDP format or a detection message in PING format. For the format of the detection message, refer to Figure 5 shown. The identification information is set in the UDP header or the ICMP header.

[0047] The identification information includes TTL, and when the detection message is a detection message in UDP format, the TTL is set in the source p...

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Abstract

The invention provides a route tracing method which comprises the following steps: according to a detection trigger signal, sending a predetermined number of detection messages containing identification information simultaneously; according to received overtime messages responded by each intermediate node in preset time, obtaining the identification information and IP address of each intermediate node where the detection message arrive and / or response time of each intermediate node. The invention also provides a route tracing apparatus and a system thereof. By employing the apparatus and system, detection of intermediate nodes in a network can be completed rapidly.

Description

technical field [0001] The present invention relates to the technical field of data communication, in particular to a method, device and system for route tracking. Background technique [0002] Trace Route is a detection method for intermediate nodes in the network, which is used to detect and obtain the IP address of each intermediate node (which can be a router or a layer 3 switch) through which data is transmitted from the source node to the destination node, and each Response time of intermediate nodes to obtain the path traveled by the data. When the network fails, we can use the information obtained from the above detection to determine the failed intermediate node. [0003] The existing tracking route method is as follows, refer to figure 1 As shown in , the source node sends a detection message whose IP header includes Time To Live (TTL, Time To Live), and the format of the existing detection message refers to figure 2 As shown, the existing detection message is ...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/56H04L12/701
Inventor 闫新成秦益飞
Owner ZTE CORP
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