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Configuration Guide - Network Management and Monitoring

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Network Management and Monitoring, including SNMP, RMON, NETCONF, OpenFlow, LLDP, NQA, Mirroring, Packet Capture, Packet Trace, Path and Connectivity Detection Configuration, NetStream, sFlow, and iPCA.
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Configuring NetStream Sampling

Configuring NetStream Sampling

Context

You can set the intervals for sampling packets so that only statistics of sampled packets are collected. The statistics show the flow status on the entire network. The sampling function reduces the impact of NetStream on device performance.

Procedure

  1. Run the system-view command to enter the system view.
  2. NetStream sampling can be configured using two methods:

    If NetStream sampling is configured in both system view and interface view, the configuration in the interface view takes effect.

    For details on how to calculate the NetStream sampling rate, see Calculation of the NetStream Sampling Rate.

    • Configure NetStream sampling in the system view. The sampling configuration will take effect on all interfaces.

      Run the netstream sampler random-packets packet-interval { inbound | outbound } command to configure packet sampling on all interfaces.

      By default, packet sampling is not configured on any interface.

    • Configure NetStream sampling in the interface view. The sampling configuration will take effect on this interface.

      NOTE:
      • When NetStream sampling uses snoop resource, the inbound NetStream sampling rate cannot be set in the interface view. In this situation, the device uses the global NetStream sampling rate to sample the inbound traffic.

      • The CE6880EI and CE5880EI do not support the setting of the NetStream sampling rate in the Layer 3 or Layer 2 subinterface view. If NetStream is configured on a Layer 3 or Layer 2 subinterface, the device uses the sampling rate in the main interface view or system view to sample traffic on the Layer 3 or Layer 2 subinterface.

      1. Run the interface interface-type interface-number command to enter the interface view.

      2. Run the netstream sampler random-packets packet-interval { inbound | outbound } command to configure packet sampling on the interface.

        By default, packet sampling is not configured on any interface.

  3. Run the commit command to commit the configuration.
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Updated: 2019-04-20

Document ID: EDOC1100075365

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