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Configuration Guide - IP Multicast

CloudEngine 8800, 7800, 6800, and 5800 V200R005C00

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, PIM (IPv4), PIM (IPv6), MSDP, multicast VPN, multicast route management (IPv4), multicast route management (IPv6), IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN, multicast network management.
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Configuring a Static Multicast MAC Address

Configuring a Static Multicast MAC Address

Pre-configuration Tasks

Before configuring a static multicast MAC address, create a VLAN and add the interface that needs to be configured with a static multicast MAC address to the VLAN.

Context

By default, Layer 2 devices broadcast all the received multicast data packets in VLANs. This wastes network bandwidth and threatens network security. To suppress broadcast packets, you can configure Internet Group Management Protocol (IGMP) snooping on the switch to create Layer 2 multicast forwarding entries or manually configure multicast MAC addresses on interfaces to create multicast MAC address entries.

After multicast MAC addresses are configured on interfaces, multicast packets destined for a multicast MAC address are forwarded only to interfaces configured with this multicast MAC address in a VLAN.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Configure a static multicast MAC address using the following two methods:

    • Configure a static multicast MAC address on an interface:

      1. Run interface interface-type interface-number

        The interface view is displayed.

      2. Run mac-address multicast mac-address vlan vlan-id

        A multicast MAC address is configured on an interface.

    • Configure a static multicast MAC address on multiple interfaces:

      Run mac-address multicast mac-address interface { interface-type interface-number1 [ to interface-type interface-number2 ] } &<1-10> vlan vlan-idA static multicast MAC address is configured on multiple interfaces.

      The interface numbers must be consecutive. interface-number2 must be greater than interface-number1.

  3. Run commit

    The configuration is committed.

Verifying the Configuration

After the configuration is complete, run the following commands in any view to check configuration of static multicast MAC addresses.

  • Run the display mac-address multicast [ mac-address ] [ vlan vlan-id ] command to check the configured static multicast MAC address entries.
  • Run the display mac-address multicast [ vlan vlan-id ] total-number command to check the number of configured static multicast MAC address entries.
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Updated: 2019-04-20

Document ID: EDOC1100039595

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