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Configuration Guide - WLAN-AC

S5700 and S6720 V200R012C00

This document describes the configurations of WLAN, including WLAN Service Configuration, Radio Resource Management, Roaming, WLAN QoS, WLAN Security, WDS, Mesh, Location, Hotspot 2.0, Dual-Link Cold Backup, N+1 Backup.
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Configuring the Rate Limit for Broadcast and Multicast Packets of APs

Configuring the Rate Limit for Broadcast and Multicast Packets of APs

Context

A large number of broadcast or multicast packets on a device occupy many network resources, affecting network services. To ensure normal running of network services, you can limit the rate of broadcast and multicast packets on APs with a proper range.

The following table lists the method for limiting the rate of broadcast and multicast packets.
Table 5-3  Method for limiting the rate of broadcast and multicast packets

Granularity

Description

Configuration

AP-based

Limit the rate of downlink traffic on the AP's wired interface and CAPWAP tunnel.

Configuring the Rate Limit for Broadcast and Multicast Packets of APs

STA-based

Limit the rate of uplink traffic on the air interface from STAs.

Configuring Flood Attack Detection

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run wlan

    The WLAN view is displayed.

  3. Run ap-system-profile name profile-name

    An AP system profile is created, and the AP system profile view is displayed.

    By default, the system provides the AP system profile default.

  4. Run traffic-optimize broadcast-suppression { all | arp | igmp | nd | other } disable

    Rate limit for broadcast and multicast packets is enabled.

    By default, rate limit for broadcast and multicast packets is enabled on an AP.

  5. (Optional) Run traffic-optimize broadcast-suppression { arp | igmp | nd | other } rate-threshold threshold-value

    The rate threshold is configured for broadcast and multicast packets on an AP.

    The default rate threshold for ARP broadcast packets, ND broadcast packets, IGMP multicast packets, and other types of broadcast packets is 256 pps.

    After you run the traffic-optimize broadcast-suppression rate-threshold command to configure a rate threshold for broadcast and multicast packets on an AP, the configured threshold will override the default rate threshold. The actual rate of broadcast and multicast packets will not exceed the configured rate threshold. If a large rate threshold is set, the expected network protection effect is not achieved. If a small rate threshold is set, broadcast and multicast packets may be lost. In most cases, use the default rate threshold unless otherwise specified.

  6. Run quit

    Return to the WLAN view.

  7. Bind an AP system profile to an AP group or AP.

    • Binding an AP system profile to an AP group.
      1. Run the ap-group name group-name command to enter the AP group view.
      2. Run the ap-system-profile profile-name command to bind the AP system profile to the AP group.

        By default, the AP system profile default is bound to an AP group.

    • Binding an AP system profile to an AP.
      1. Run the ap-id ap-id, ap-mac ap-mac, or ap-name ap-name command to enter the AP view.
      2. Run the ap-system-profile profile-name command to bind the AP system profile to the AP.

        By default, no AP system profile is bound to an AP.

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Updated: 2018-12-24

Document ID: EDOC1100038361

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