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Configuration Guide - IP Multicast

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

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 Multicast Group Policy

Configuring a Multicast Group Policy

Context

A multicast group policy determines which multicast groups the hosts in a VLAN can join. The multicast group policy is applicable only to dynamic multicast groups. Before configuring the multicast group policy, create an access control list (ACL) and define rules. For details about ACL configuration, see "ACL Configuration" in the CloudEngine 8800, 7800, 6800, and 5800 Series Switches Configuration Guide - Security.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Use either of the following methods to configure a multicast group policy.

    • Configure a multicast group policy in a VLAN.
      1. Run vlan vlan-id

        The VLAN view is displayed.

      2. Run igmp snooping group-policy { acl-number | acl-name acl-name } [ version version-number ]

        A multicast group policy is configured.

    • Configure a multicast group policy on an interface.
      1. Run interface interface-type interface-number

        The interface view is displayed.

      2. Run igmp snooping group-policy { acl-number | acl-name acl-name } [ version version-number ] vlan { vlan-id1 [ to vlan-id2 ] }&<1-10>

        A multicast group policy is configured on an interface.

    By default, the user hosts in a VLAN can join any multicast group. If the IGMP version is not specified for a multicast group policy, the switch applies the policy to all the received IGMP messages regardless of their versions.

    If you configure multicast group policies for the same VLAN in the interface view and VLAN view, the system first uses the policy configured in the interface view and then the policy configured in the VLAN view to determine the groups that user hosts can join.

    NOTE:

    The ACL referenced in a group policy permits all multicast groups by default. Therefore, to allow interfaces in a VLAN to receive only multicast data sent to specific groups, use a rule deny source any rule with permit rules in the ACL.

  3. Run commit

    The configuration is committed.

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Updated: 2019-04-20

Document ID: EDOC1100075361

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