Overview Of Netstream - Huawei AR150/200 Series Configuration Manual

Huawei AR150&200 Series Enterprise Routers
Configuration Guide - Network Management

7.1 Overview of NetStream

This section describes the working principle of NetStream.
Concepts of NetStream
NetStream is a technology of collecting and advertising statistics about network traffic. It
classifies and collects statistics about the communication traffic and resource usage on the
network. NetStream also manages the network and conducts charging based on the service types
and QoS. NetStream involves three types of devices:
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NetStream Application
Due to the connectionless-oriented feature of the IP network, communications among different
types of services are realized by the transmission of IP packets from one terminal to another.
Such IP packets constitute a data stream of a particular service on the network. Most data streams
on the network are ephemeral and bidirectional. Based on the destination IP address, source IP
address, destination port number, source port number, protocol number, Type of Service (ToS),
and inbound and outbound interfaces of packets, NetStream identifies different streams and
collects statistics for each stream. The router sends the collected traffic statistics regularly to the
NSC for further processing and then sends the statistics to the NDA for data analysis. The report
generated based on the analysis result is the basis for accounting and network planning. As shown
in Figure
Figure 7-1 Diagram of NetStream data collection and analysis
Issue 02 (2012-03-30)
Netstream Data Exporter (NDE)
The NDE collects and sends traffic statistics.
Netstream Collector (NSC)
The NSC receives and stores the traffic statistics sent by the NDE.
Netstream Data Analyse (NDA)
The NDA analyzes the traffic statistics. The analysis result provides the basis for network
accounting, network planning, network monitoring, and application monitoring and
analysis.
7-1.
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