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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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Configuring Traffic Suppression on an Interface

Configuring Traffic Suppression on an Interface

Context

Excess broadcast, multicast, unknown unicast or unicast packets will cause broadcast storms. You can configure traffic suppression for a specified type of packet on an interface to limit the rate of these packets.

NOTE:

In an SVF using centralized or hybrid forwarding mode, traffic suppression cannot be configured for unknown unicast traffic on the interfaces of leaf switches.

Pre-configuration Tasks

Before configuring traffic suppression on an interface, configure link layer protocol parameters for interfaces to ensure that the link layer protocol status on the interfaces is Up.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run { storm suppression broadcast | storm suppression multicast | storm suppression unknown-unicast | storm suppression unicast } { percent-value | cir cir-value [ gbps | mbps | kbps ] [ cbs cbs-value [ bytes | mbytes | kbytes ] ] | packets packets-per-second }

    Traffic suppression is configured. (Except CE6870EI and CE6875EI:)

    NOTE:
    • For incoming packets of the same type on an interface, you can only configure either traffic suppression or storm control.
    • On an interface, traffic suppression can be configured for either unicast traffic or unknown unicast traffic.

    • Traffic suppression can be configured on Eth-Trunk member interfaces, but cannot be configured for an Eth-Trunk.

  4. Run { storm suppression broadcast | storm suppression multicast | storm suppression unknown-unicast | storm suppression unicast } { percent-value | cir cir-value [ gbps | mbps | kbps ] [ cbs cbs-value [ bytes | mbytes | kbytes ] ] }

    Traffic suppression is configured. (CE6870EI and CE6875EI:)

    NOTE:
    • For incoming packets of the same type on an interface, you can only configure either traffic suppression or storm control.
    • On an interface, traffic suppression can be configured for either unicast traffic or unknown unicast traffic.

    • Traffic suppression cannot be configured on an Eth-Trunk member interface, and the percent mode of traffic suppression is not supported on an Eth-Trunk.

  5. Run { storm suppression broadcast | storm suppression multicast | storm suppression unknown-unicast } block outbound

    The interface is configured to block outgoing packets.

  6. Run commit

    The configuration is committed.

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Updated: 2019-04-20

Document ID: EDOC1100074765

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