Method and system for monitoring network packet loss rate

Abstract

The invention discloses a method and system for monitoring network packet loss rate. The method includes the steps of: capturing data packets at the sink end; storing the header information of the data packets; using the header information to continuously store each data packet in the protocol information table, wherein the data from different source ends The packets are stored in different protocol information tables, which are stored in descending order according to the values ​​of the identification bits of the read data packets. At the sink end, calculate the number of complete data packets sent by the source end and the number of complete data packets received by the sink end according to the information in the protocol information table; The packet loss rate of the data packets from the source end in the network is obtained by calculating the number of complete data packets received by the sink end. The method of the invention does not bring extra load to the network, does not need to change the structure or content of the data frame, can monitor the packet loss rate in real time, and has low cost.

Description

Technical field [0001] The present invention relates to the field of network technology, in particular to a method and system for monitoring network packet loss rate. Background technique [0002] In the Internet, the IP packet itself does not have any security features, it is easy to be copied, modified, replayed and intercepted to view the contents of the packet. And IPSec (IP Security Protocol) provides a standard, robust and inclusive mechanism to provide security guarantees for IP and upper-layer protocols. IPSec can protect the source and destination IP addresses of communication, provide data integrity verification, ensure data confidentiality, and provide anti-replay functions. [0003] IPSec VPN is a VPN (Virtual Private Network, virtual private network) tunnel established by the IPSec security protocol, which can establish a secure virtual channel on the public network for remote access. Although IPSec VPN can guarantee the security of data packets between hosts, betwee...

AI Technical Summary

Problems solved by technology

[0012] In other existing solutions, different packet loss rate calculation methods are generally used for different networks. At present, there is no end-to-end packet loss rate method for IPSec VPN networks

Moreover, most of the existing solutions count the number of data packets sent and received from both ends of the network, and in some networks, there are generally multiple terminal devices communicating with a centralized device controller. It is obviously unreasonable to place statistical tools and will increase costs

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