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Method, device and system for fragmented message reassembly test

A technology of test equipment and auxiliary test equipment, which is applied in the field of communication, can solve problems such as inconsistency in sending order, failure of message reassembly, and inconsistency in order, and achieve the effect of enriching test samples

Active Publication Date: 2016-03-16
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of recombining the above fragmented messages, the inventor found that at least the following problems exist in the prior art: the sending end sends the fragmented messages in a certain sending order, and the order in which the receiving end reassembles the Fragmented packets can only be successfully reassembled when the order of the fragmented packets is consistent
Usually, due to the different transmission conditions of links with different bandwidths, the order of fragmented packets received by the receiving end may be inconsistent with the order of fragmented packets sent by the sending end.
Since the receiving end needs to reassemble the fragmented packets in the order in which they received them, the order in which the receiving end performs reassembly may not be consistent with the sending order of the sending end, resulting in packet reassembly failure.

Method used

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  • Method, device and system for fragmented message reassembly test
  • Method, device and system for fragmented message reassembly test

Examples

Experimental program
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Embodiment 1

[0033] This embodiment provides a fragmented message reassembly test method, the method involves a test device, an auxiliary test device, and a device under test, and is used to detect the correctness of the reassembled fragmented message of the device under test. Such as figure 2 As shown, the method includes:

[0034] 201. The test device sends a test packet whose destination address is the device under test to the auxiliary test device.

[0035] The test device in this embodiment constructs a test message whose destination address is the device under test, and sends the constructed test message to the auxiliary test device.

[0036] 202. The auxiliary test device receives the test packet sent by the test device.

[0037] As a forwarding device of the test message, the auxiliary test device first receives the test message sent by the test device. exist figure 1 In the shown test system, the auxiliary test equipment receives the test message sent by the test equipment th...

Embodiment 2

[0054] As a detailed description and further expansion of the method described in Embodiment 1, this embodiment also provides a method for fragmented message reassembly testing. In this method, the Internet Control Message Protocol (Internet Control Message Protocol, ICMP) report This article takes a test message as an example to illustrate. Generally, ICMP messages have a response function. The test device can judge whether the reassembly of the device under test is successful according to the ICMP response message sent by the device under test. Specifically, such as image 3 As shown, the method includes:

[0055] 301. The test device sends an ICMP packet whose destination address is the device under test to the auxiliary test device.

[0056] The test device first sets the field of the Internet Protocol (Internet Protocol, IP for short) header of the ICMP message as the IP address of the device under test, and then sends the ICMP message to the auxiliary test device.

[0...

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Abstract

The invention discloses a segment message regrouping test method, device and system, and relates to the technical field of communication, which can be used for testing whether a segment message is regrouped successfully or not on a receiving end so as to obtain a result. The method comprises the following steps of: decomposing a test message transmitted by a test device into at least two segment messages according to an MTU value through an auxiliary test device and transmitting the segment message to a tested device, capturing the two segment messages on an interface, and inputting the two segment messages into the testes device; generating a test data stream consisting of the at least two segment messages according to a predetermined sequence regulation through the test device, and transmitting the test data stream to the tested device through the test device; regrouping the at least two segment messages in the test data stream through the tested device; determining that the segment messages are successfully regrouped if the test device receives a response message transmitted by the tested device, and otherwise, determining that the segment messages are failed to be regrouped. The segment message regrouping test method, device and system are mainly used for testing process of an ICMP (internet control message protocol) message.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and system for fragmented message reassembly testing. Background technique [0002] With the rapid development of the Internet and the continuous improvement of the performance of network communication equipment, the types of data packets are more abundant, and the demand of customers for different services is also increasing, resulting in the explosive growth of customer traffic. A method of message transmission in the prior art is that the sending end slices the message to be sent to obtain multiple fragmented messages, and then sends the multiple fragmented messages to the receiving end, and the receiving end will receive The received fragmented message is reassembled to obtain a complete message. [0003] In the existing fragmented message reassembly method, the sending end sends the sliced ​​multiple fragmented messages to the receiving end t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26
Inventor 张盼
Owner MAIPU COMM TECH CO LTD