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NE20E-S2 V800R010C10SPC500 Feature Description - System Monitor 01

This is NE20E-S2 V800R010C10SPC500 Feature Description - System Monitor
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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).
Sampling Modes

Sampling Modes

With packet sampling, information about only a few packets needs to be extracted for analysis, which reduces NetStream packet transmission impacts on device performance.

Packet sampling modes are as follows:
  • Packet-based random sampling

    One packet out of a random number of packets is sampled. If the packet interval is 100, one packet is randomly sampled every 100 packets.

  • Packet-based regular sampling

    One packet is regularly sampled at a fixed packet interval. If the packet interval is set to 100 and the fifth packet has been sampled, a device samples every 100th packet. For example, 105th, 205th, and 305th packets are sampled.

  • Time-based random sampling

    One packet is randomly sampled at a random interval. If the sampling time period is 100 ms, one packet is randomly sampled among packets that pass through the interface within every 100 ms.

  • Time-based regular sampling

    One packet is regularly sampled at a fixed time interval. If the time interval is 100 ms, and the first packet has been sampled at 30 ms, a device samples packets that pass through the interface every 100th ms. For example, packets are sampled at 130 ms, 230 ms, and 330 ms.

NOTE:

The NE20E supports three sampling modes: packet-based regular sampling, packet-based random sampling, and time-based regular sampling.

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Updated: 2019-01-02

Document ID: EDOC1100055478

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