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Configuration Guide - Security

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Security, including ACL, local attack defense, MFF, attack defense, traffic suppression and storm control, ARP security, Port security, DHCP snooping, ND snooping, PPPoE+, IPSG, SAVI, separating the management plane from the service plane, security risks.
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(Optional) Configuring Traffic Suppression Associated with MAC Address Flapping

(Optional) Configuring Traffic Suppression Associated with MAC Address Flapping

Context

By default, the threshold for traffic suppression associated with MAC address flapping is a bandwidth percentage, and the percentage rate limit is 1%. You can run the storm suppression mac-address flapping command to configure the CIR for traffic suppression associated with MAC address flapping or enable the device to forcibly forward packets based on the threshold for traffic suppression associated with MAC address flapping.

NOTE:
The CE5880EI and CE6880EI do not support this command.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run storm suppression mac-address flapping cir cir-value [ gbps | mbps | kbps ] [ force ]

    The threshold for traffic suppression associated with MAC address flapping is configured.

    By default, the threshold for traffic suppression associated with MAC address flapping is a bandwidth percentage, and the percentage rate limit is 1%.

    • Traffic suppression associated with MAC address flapping does not take effect on peer-link ports.
    • When force is not specified in the storm suppression mac-address flapping command or this command is not configured, traffic suppression configured on interfaces takes effect in the event of MAC address flapping.
    • When force is specified, traffic suppression associated with MAC address flapping takes effect even if traffic suppression is also configured on interfaces.
    • When storm control is configured on interfaces, traffic suppression associated with MAC address flapping does not take effect no matter whether force is specified.
    • When the multicast function is enabled, traffic suppression associated with MAC address flapping does not take effect.

  3. Run commit

    The configuration is committed.

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Updated: 2019-04-20

Document ID: EDOC1100074765

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