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CLI-based Configuration Guide - Security

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document provides the basic concepts, configuration procedures, and configuration examples in different application scenarios of the network management feature supported by the device.
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Setting the Session Thresholds for System-Level Traffic Statistics and Monitoring

Setting the Session Thresholds for System-Level Traffic Statistics and Monitoring


System-level traffic statistics and monitoring take effect on all the data flows in interzones that are enabled with the firewall feature. That is, the Router collects statistics about the ICMP, TCP, and UDP sessions in the interzones. When the number of sessions exceeds the threshold, the Router restricts the sessions until the number of sessions is less than the threshold.


  1. Run system-view

    The system view is displayed.

  2. Run firewall statistics system enable

    The system-level traffic statistics and monitoring are enabled.

    By default, the system-level traffic statistics and monitoring is disabled.

  3. (Optional) Run firewall statistics system connect-number { frag | icmp | tcp | tcp-proxy | udp } high high-threshold low low-threshold

    The session thresholds for the system-level traffic statistics and monitoring are set.

    For the system-level traffic statistics, you can set the thresholds for each type of session. For example, you can set the upper threshold for TCP sessions to 15000 and lower threshold to 12000. When the number of TCP sessions in all interzones exceeds 15000, the Router denies all new TCP sessions in the interzone and reports an alarm to the information center. If the number of TCP sessions falls below 12,000, a new TCP session can be established, a traffic recovery log is generated, and the log is output to the information center.

Updated: 2019-08-07

Document ID: EDOC1100034077

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