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Message mirroring method and network equipment with message mirroring function

A network device and mirroring technology, applied in the field of communication and network, can solve the problem of mirrored packet loss, reduce packet traffic, improve mirroring capability, and ensure accuracy.

Active Publication Date: 2007-09-19
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the problem that the mirrored message is lost when the mirrored message flow exceeds the bandwidth of the monitoring port

Method used

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  • Message mirroring method and network equipment with message mirroring function
  • Message mirroring method and network equipment with message mirroring function
  • Message mirroring method and network equipment with message mirroring function

Examples

Experimental program
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Embodiment Construction

[0047] For most network monitoring and analysis, complete packets are not required, and usually the header part of a packet can meet the needs of monitoring and analysis. For example, for the traffic analysis of network routing, only the TCP / UDP (Transfer Control Protocol / User Datagram Protocol, Transmission Control Protocol / User Datagram Protocol) header of the transport layer is needed, and the payload part of the TCP / UDP message is not necessary. Mirrored to the monitoring port.

[0048] Therefore, in the present invention, the user is allowed to copy only the required part of the original message to the mirrored message, and the mirroring capability of the monitoring port is improved by reducing the length of each message, and the mirroring efficiency is improved. The present invention can be used for both port mirroring and flow mirroring, and there is no restriction on how to set the mirroring conditions of the message, for example, it is set to mirror the messages of al...

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PUM

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Abstract

The invention includes steps: determining length of mirror image of message; copying part of original message from start to length of mirror image to message of mirror image; sending message of mirror image to monitored and controlled port. The invention reduces flux of message after mirroring image, raises mirroring capability of monitored and controlled port so as to eliminate message loss basically, and ensure accuracy for monitoring and controlling network. The invention realizes supporting remote monitoring and controlling

Description

technical field [0001] The invention relates to the field of communication and network, in particular to a message mirroring method and a network device with a message mirroring function. Background technique [0002] In order to monitor the traffic in the network, the network administrator often uses the packet mirroring technology to mirror the packets of interest to the monitoring port, and then analyzes the packets of the monitoring port to obtain the required traffic data. Through this technology, network traffic can be monitored and analyzed without affecting normal services and without changing the network topology. [0003] Network administrators usually have two ways to select mirrored packets, one is to mirror the packets on one or more ports of the network device to another monitoring port, which is called port mirroring; the other is to mirror the packets that meet the set requirements. Conditional packets are mirrored to the monitoring port, which is called flo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L29/06
Inventor 卢胜文
Owner NEW H3C TECH CO LTD
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