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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).
Overview of NetStream

Overview of NetStream


NetStream is a Huawei application that collects and analyzes service traffic based on network flows.


Facing the ever-increasing services and applications on the Internet, enterprises poses high requirements on network management and accounting. NetStream was developed to meet enterprises' requirements. NetStream covers the shortage (Table 12-1) of the traffic statistics collection technologies traditionally used in the industry, such as SNMP and port mirroring.

NetStream collects service traffic statistics and resource usage based on traffic classification and sends the statistics to a dedicated server or a network management system (NMS) with NetStream software installed for further analysis.

Table 12-1  Implementation and limitations of traditional traffic statistics collection methods




Based on IP packets

Saves counter indexes in the routing table to count the number of bytes and packets that pass through the device.

Only collects basic statistical information.

Based on access control lists (ACLs)

Matches flows based on ACLs and then collects statistics.

Requires a large number of ACLs and is only able to collect flow statistics that match ACL rules.

Using SNMP

Uses SNMP to implement simple statistics functions, such as interface statistics, IP packet statistics, and ACL matching statistics.

Is not robust enough.Wastes CPU and network resources by continuously polling the NMS for statistics collection.

Based on port mirroring

Duplicates traffic passing through a port and sends the duplicated traffic to a dedicated server for statistics and analysis.

Requires a dedicated server, occupies an interface, and requires that the interface support port mirroring.

Based on traffic duplication at the physical layer

Duplicates traffic using an optical splitter or other devices at the physical layer and then sends the duplicated traffic to a dedicated server for statistics.

Requires a dedicated server and additional hardware.


  • Accounting

    NetStream provides detailed data for accounting based on resource usage (links, bandwidths, and time segments). The data includes, but is not limited to:
    • Number of packets
    • Number of bytes
    • IP addresses
    • Time
    • Types of Service (ToS)
    • Application type
    Enterprises can calculate the expenses of each department and distribute operation costs accordingly to use resources effectively.
  • Network monitoring

    When deployed on an interface connected to the Internet, NetStream monitors outgoing traffic in real time and analyzes the bandwidth usage of services. This data helps network administrators determine the network status and discover inappropriate network structures or performance bottlenecks.

  • User monitoring and analysis

    NetStream obtains network resource usage of users, allowing network administrators to efficiently plan and allocate network resources and ensure network security.

Updated: 2019-05-17

Document ID: EDOC1000174072

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