Network layer monitoring method, network layer monitoring system and related devices

Abstract

The invention discloses a network layer monitoring method, a network layer monitoring system and related devices. The method comprises steps: a first identifying device located at a first network exit receives a data packet from a first network; the first identifying device adds a monitoring field for the data packet, wherein the monitoring field comprises a sequence number for identifying the position of the data packet and the time when the first identifying device forwards the data packet; the first identifying device forwards the data packet to a second network; a second identifying device located at a second network portal receives the data packet, and the information included in the monitoring field in the data packet and the time when the second identifying device receives the data packet are transmitted to a network layer monitoring platform; and the network layer monitoring platform determines the network layer transmission performance according to the received information. Active channel associated monitoring on the network layer is realized, the monitoring process does not interfere with a normal service flow, real-time deployment is facilitated, and the universality is strong.

Description

technical field [0001] The invention relates to the field of communication networks, in particular to a network layer monitoring method and system and related equipment. Background technique [0002] The cross-DC (Domain Controller, domain controller) service flow refers to the service flow that needs to pass through the backbone network for data access from one DC to another DC, such as video service (users access the video server through the backbone network). For this type of service flow, if a fault occurs during transmission, user experience will deteriorate. Therefore, it is necessary to understand the transmission performance between DCs and monitor the network in real time. [0003] In the prior art, there are mainly two types of real-time monitoring methods, active and passive, for network monitoring. Passive methods such as netflow (a toolkit for analyzing network packet information), flow-s (a traffic collection probe for Ethernet) and other software or hardware...

AI Technical Summary

Problems solved by technology

Passive methods such as netflow (toolkit for analyzing network packet information), flow-s (traffic acquisition probe for Ethernet) and other software or hardware probes are essentially traffic statistics and cannot measure delay and jitter

Among the active methods, one method is to actively initiate detection by the network, such as service test instruments, test probes, and simulated terminal software, which will affect and interfere with normal service traffic; the other method is the road-associated method, such as the current MPG4( MovingPicture Experts Group 4), IPTV (Internet Protocol Television, Internet Protocol Television) measurement system is a measurement method at the application layer, and its MOS (Mean Opinion Score, average opinion value) represents the user's subjective perception, It cannot be correlated with the transmission performance of the network layer, and requires the deployment of a professional business measurement system, which lacks versatility

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