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CLI-based Configuration Guide - Network Management and Monitoring

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R009

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
NetStream Implementation

NetStream Implementation

Components of a NetStream System

NetStream systems have three components: NetStream data exporter (NDE), NetStream collector (NSC), and NetStream data analyzer (NDA), as shown in Figure 12-1.

Figure 12-1  Networking diagram of a NetStream system
  • NDE

    An NDE is a device configured with NetStream. It analyzes and processes network flows, extracts flows that meet statistical conditions, and exports the statistics to the NSC. It can also perform operations (such as aggregation) on the statistics before exporting them.

  • NSC

    An NSC is a program running in Windows or Unix that parses packets from NDEs and saves the statistics to a database. It can collect, filter, and aggregate data exported from multiple NDEs.

  • NDA

    An NDA is a traffic analysis tool that extracts and processes statistics from the NSC and generates a report. This report provides a basis for services such as traffic accounting, network planning, and attack monitoring. The NDA provides a graphical user interface (GUI) for users to easily check and analyze the collected data.

NOTE:

In practice, the NSC and NDA are integrated on a NetStream server.

NetStream Working Mechanism

NetStream systems work as follows:

  1. An NDE periodically exports detailed data about flows to an NSC.
  2. The NSC processes the data and sends it to an NDA.
  3. The NDA analyzes the data for applications such as accounting and network planning.

Generally, Huawei data communication products function as NDEs in a NetStream system. Therefore, the following sections describe the implementation of NDE. The implementation of NetStream is as follows:

Figure 12-2  NetStream implementation
In Figure 12-2, the NDE is properly forwarding service traffic and periodically exports detailed data about flows to the NetStream server. The NetStream module on the NDE:
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Updated: 2019-05-17

Document ID: EDOC1000174072

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