Configuring Netstream; Overview; Netstream Architecture - H3C SR6600-X Configuration Manual

Configuring NetStream

Overview

NetStream is an accounting technology that provides statistics on a per-flow basis. An IPv4 flow is
defined by the following 7-tuple elements:
• Destination IP address.
Source IP address.
•
Destination port number.
•
Source port number.
•
Protocol number.
•
• ToS.
Inbound or outbound interface.
•

NetStream architecture

A typical NetStream system includes the following elements:
NetStream data exporter—A device configured with NetStream. The NDE provides the following
•
functions:
Classifies traffic flows by using the 7-tuple elements.
Collects data from the classified flows.
Aggregates and exports the data to the NSC.
NetStream collector—A program running in an operation system. The NSC parses the packets
•
received from the NDEs, and saves the data to its database.
NetStream data analyzer—A network traffic analyzing tool. Based on the data in NSC, the NDA
•
generates reports for traffic billing, network planning, and attack detection and monitoring. The
NDA can collect data from multiple NSCs. Typically, the NDA features a Web-based system for
easy operation.
NSC and NDA are typically integrated into a NetStream server.
H3C network devices act as NDEs in the NetStream system. This document focuses on NDE
configuration.
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