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Configuration Guide - VPN

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the VPN configuration procedures and provides configuration examples.
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Configuring VSI-based Traffic Suppression

Configuring VSI-based Traffic Suppression


On a VPLS network, you can limit the rates of broadcast, multicast, and unknown unicast packets to:

  • Enhance traffic management and appropriately allocate user bandwidth.
  • Prevent traffic attacks and enhance network security.

You can flexibly control the processing of unknown multicast packets. For example, you can enable the device to discard unknown multicast packets in the IGMP-snooping over VPLS scenario.

Do as follows on the PEs on which the VSI broadcast traffic, multicast traffic, and unknown unicast traffic need to be suppressed.


  1. Run:


    The system view is displayed.

  2. Run:

    vsi vsi-name

    The VSI view is displayed.

  3. Run:

    broadcast-suppression cir cir-value cbs cbs-value

    The broadcast traffic is suppressed based on VSIs.

  4. Run:

    multicast-suppression cir cir-value cbs cbs-value

    The multicast traffic is suppressed based on VSIs.

  5. Run:

    unknown-unicast-suppression cir cir-value cbs cbs-value

    The unknown unicast traffic is suppressed based on VSIs.

  6. Run:

    unknown-frame multicast { drop | broadcast }

    The processing mode for received unknown frames is configured.

Updated: 2019-08-21

Document ID: EDOC1000141944

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