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Cable two-end signal delay sequence matching generation method for network signal tracing

A signal delay and network signal technology, applied in the field of network security, to achieve good fault tolerance effect

Active Publication Date: 2018-09-14
WUHAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The present invention does not depend on IP address and MAC address

Method used

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  • Cable two-end signal delay sequence matching generation method for network signal tracing
  • Cable two-end signal delay sequence matching generation method for network signal tracing

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Embodiment Construction

[0014] The technical solutions of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0015] The present invention proposes a method for generating signal delay sequence matching at both ends of the network cable for traceability of the network signal. A device capable of achieving ns-level timing and adding a current accurate timing timestamp to the monitored data packets is installed at both ends of the network. , the device monitors the signals in the network in real time and adds a time stamp to the signal and sends it to the host through the switch. The host receives the Ethernet signal with accurate time stamp information from the sending end device and the receiving end device, and generates a delay sequence through matching. The invention can efficiently match the time points to calculate the delay of the network signal in the network cable without affecting the original network signal.

[0016] Further, the signa...

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Abstract

The invention discloses a cable two-end signal delay sequence matching generation method for network signal tracing, wherein a signal time stamp generator is respectively installed at a transmitting end and a receiving end of the network; the signal time stamp generator achieves accurate timing, and adds the current precise timing timestamp to the monitored data packet to obtain an Ethernet signalcontaining accurate timestamp information, then sends the signal to the host through the switch; and the host matches according to the received Ethernet signal containing the accurate timestamp information to obtain a delay sequence. The invention is capable of efficiently matching the time points to extract the delay of the network signal in the network line without affecting the original network signal.

Description

technical field [0001] The invention belongs to the field of network security, in particular to a matching method for efficiently matching signals at both ends of a network cable and generating a time-delay sequence so as to trace the source of signals in the network. Background technique [0002] IP traceability technology is a hot and difficult issue in network research at present and in the future. At present, IP traceability technology uses routers as an intermediary to trace back to the real location of the attacker who sent the message with a forged address. Research on simple and effective IP traceability technology will be of great significance to eliminate DoS attacks and maintain the security and stability of the network environment. [0003] However, IP traceability technology cannot determine the source of information with the same IP address, that is, the current traceability technology has a strong dependence on IP, but users can easily forge their own IP addre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L29/06
CPCH04L43/0852H04L63/1408H04L63/1458H04L2463/146
Inventor 郭迟崔竞松刘经南郭文飞祝勇罗国君
Owner WUHAN UNIV