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Configuration Guide - Network Management and Monitoring

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Network Management and Monitoring, including SNMP, RMON, NETCONF, OpenFlow, LLDP, NQA, Mirroring, Packet Capture, Packet Trace, Path and Connectivity Detection Configuration, NetStream, sFlow, and iPCA.
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Components of the Intelligent Traffic Analysis System

Components of the Intelligent Traffic Analysis System

Components of the Intelligent Traffic Analysis System

A typical intelligent traffic analysis system consists of the traffic-analysis data exporter (TDE), traffic-analysis processor (TAP), and traffic-analysis data analyzer (TDA).

  • TDE: is a switch enabled with the intelligent traffic analysis function. The TDE is responsible for determining the service flows to be detected and sending them to the TAP.

  • TAP: is a built-in chip on the CPU of the switch. The TAP processes and analyzes the service flows sent by the TDE, and exports the analysis results to the TDA.

  • TDA: is a network traffic analysis tool that provides a graphical user interface (GUI) for users to easily obtain, view, and analyze collected data. Currently, only FabricInsight can function as the TDA.

In actual applications, the TDE and TAP are integrated on one switch. In Figure 19-1, when packets in a specified service flow are sent and received along the same path, each device through which the flow passes can obtain the bidirectional traffic of the flow. You can analyze indicators such as the packet loss rate and delay of the flow on these devices.

Figure 19-1 Components of the intelligent traffic analysis system

Working Process of the Intelligent Traffic Analysis System

Figure 19-2 Working process of the intelligent traffic analysis system

As shown in Figure 19-2, the working process of the intelligent traffic analysis system is as follows:

  1. After a service flow to be detected is configured, the TDE uses the delivered ACL rule to match the service flow. The matched service flow is sent by the forwarding chip to the TAP.
  2. The TAP processes the received flow. If the flow meets the requirements, the TAP creates a flow table for analysis. If the flow does not meet the requirements or exceeds the processing performance of the TAP, the TAP discards the packets.
  3. The TAP encapsulates the analysis result using a specified destination address, and sends the encapsulated packet to the forwarding chip for route searching and forwarding. The TDA performs further analysis and display after receiving the packet.
Updated: 2019-04-20

Document ID: EDOC1100075365

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