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CLI-based Configuration Guide - IP Multicast

AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R007

This document describes the principles and configurations of IP multicast, and provides configuration examples.
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(Optional) Configuring a Static Router Port

(Optional) Configuring a Static Router Port


A router port is on a Layer 2 device and receives multicast protocol packets from an upstream Layer 3 multicast router or Layer 3 switch. The router port receives multicast packets from the upstream device and forwards them to member ports. After Multicast Listener Discovery (MLD) snooping is enabled in a VLAN, all interfaces in the VLAN learn the multicast packets by default. When an interface receives an MLD Query or PIM hello packet, the Layer 2 device sets the interface as a dynamic router port. A dynamic router port has an aging time.

To enable hosts to always receive multicast packets from an interface, configure the interface as a static router port. A static router port will not age out. You can use the undo command to delete it.


  1. Run:


    The system view is displayed.

  2. Run:

    interface interface-type interface-number

    The interface view is displayed.

  3. Run:

    mld-snooping static-router-port vlan vlan-id

    An interface is configured as a static router port.

Updated: 2019-06-12

Document ID: EDOC1000097181

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