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Mirroring method and device for abnormal message

A technology for abnormal packets and mirroring, which is applied in the field of network communication and can solve the problem of inability to obtain the content of abnormal data packets.

Active Publication Date: 2017-01-04
ZHONGRUI COMM PLANNING & DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a mirroring method and device for abnormal data messages, which are used to solve the problem in the prior art that the content of abnormal data messages cannot be obtained through mirroring

Method used

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  • Mirroring method and device for abnormal message
  • Mirroring method and device for abnormal message
  • Mirroring method and device for abnormal message

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1: Mirroring abnormal packets smaller than 64 bytes

[0063] see Figure 6 , is a schematic flow diagram of Embodiment 1 of the present invention, the flow includes:

[0064] Step 601, setting a mirroring mechanism, and specifying a mirroring source port and a mirroring destination port;

[0065] Step 602, analyzing the packets sent or received by the mirroring source port, and filtering out the abnormal packets;

[0066] Step 603 , from the screened abnormal messages, screen again the messages with correct checksum but less than 64 bytes, that is, the abnormal messages that need to be mirrored in this embodiment.

[0067] Step 604, judge the state of the remaining available space of the storage space, if it does not reach the set threshold (this threshold is set according to the actual working situation, the purpose is to ensure that the storage and forwarding processing of the remaining normal data packets by the switch is not affected), then directly Di...

Embodiment 2

[0078] Embodiment 2: Mirroring abnormal packets with CRC errors

[0079] see Figure 7 , is a schematic flow diagram of Embodiment 2 of the present invention, the flow includes:

[0080] Step 701, setting a mirroring mechanism, and specifying a mirroring source port and a mirroring destination port.

[0081] Step 702, analyzing the packets sent or received by the mirroring source port, and filtering out abnormal packets;

[0082] Step 703: Perform classification processing on the screened abnormal packets, and further screen out abnormal packets with CRC errors, that is, abnormal packets that need to be mirrored in this embodiment.

[0083] Step 704, judge the state of the remaining available space of the storage space, if it does not reach the set threshold (this threshold is set according to the actual working conditions, the purpose is to ensure that the storage and forwarding processing of the remaining normal data packets by the switch is not affected), then directly D...

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Abstract

The invention discloses a mirroring method and a device of unusual messages. The method comprises a step of setting up a mirroring mechanism and assigning a mirroring source port and a mirroring destination port, a step of analyzing messages received and sent by the mirroring port, screening out the unusual messages and copying and caching the unusual messages to a storage space, a step of classifying the cached unusual messages and packaging the processed unusual messages into normal messages respectively, a step of sending packaged messages to the mirroring destination port, and a step of analyzing the mirroring messages received by the mirroring destination port, screening out the packaged messages and decoding on the package messages to obtain the original unusual messages. According to the mirroring method and the device of the unusual messages, the purpose of mirroring on the unusual messages is achieved.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and device for mirroring abnormal messages. Background technique [0002] Switch port mirroring (Port Mirroring) refers to the method of mirroring the data of one or more ports of the switch to one or more designated ports (such as figure 1 shown). Among them, the port to be copied is called the mirroring source port, and the monitoring port receiving the copied data is called the mirroring destination port. [0003] Through the mirroring mechanism, all data packets entering and leaving the network are monitored, and the management server installed with monitoring software can capture the data. For example, Internet cafes need to provide this function to send the data to the public security department for review. For the sake of information security and protection of company secrets, enterprises also urgently need a port in the network that can provide this real-ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/861H04L12/46H04L12/24H04L1/00
Inventor 张小云
Owner ZHONGRUI COMM PLANNING & DESIGN
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