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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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NetStream Packet Sampling

NetStream Packet Sampling

Packet sampling takes samples of incoming and outgoing traffic in adjustable intervals so that only the statistics of sampled packets are collected. This reduces the impact of NetStream on device performance and the statistics show the flow status of the entire network.

The following sampling modes are available:
  • Packet-based random sampling

    A random packet is sampled out of a specified number of packets. For example, if the number of packets is set to 100, the NDE randomly samples a packet from every 100 packets. This mode applies to sampling regular traffic.

  • Packet-based regular sampling

    One packet is sampled out of a fixed number of packets. For example, if the number of packets is set to 100, the NDE samples a packet after every 100 packets are transmitted. If the NDE samples the 5th packet at the first time, the NDE samples the 105th packet, followed by the 205th packet, and so on. This mode applies to network traffic accounting.

  • Time-based random sampling

    The NDE randomly samples a packet in a specified interval. For example, if the interval is set to 100, the NDE randomly samples a packet in every 100 ms. This mode applies to sampling regular traffic.

  • Time-based regular sampling

    The NDE samples a packet at a specified interval. For example, the interval is set to 100. If the NetStream module samples a packet at the 5th second at the first time, the NDE samples a packet at the 105th second, the 205th second, and so on. This mode applies to networks with a large volume of traffic.

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Updated: 2019-05-17

Document ID: EDOC1000174072

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