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CLI-based Configuration Guide - IP Multicast

AR500, AR510, and AR530 V200R007

This document describes the principles and configurations of IP multicast, and provides configuration examples.
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Configuring IPv6 PIM-SM in the SSM Model

Configuring IPv6 PIM-SM in the SSM Model

Pre-configuration Tasks

Before configuring IPv6 PIM-SM in the SSM model, configure an IPv6 unicast routing protocol to ensure that unicast routes on the network are reachable.

Context

An IPv6 PIM-SM network uses the SSM model to provide specified multicast services for user hosts. User hosts in a multicast group can receive multicast data sent from the specified multicast source to this group.

Configuration Process

Enabling IPv6 PIM-SM is a mandatory procedure. Configuring an SSM group policy can control the address range of SSM groups. This operation is optional.

Enabling IPv6 PIM-SM

Context

IPv6 PIM-DM and IPv6 PIM-SM cannot be enabled simultaneously on the device.

It is recommended that you enable IPv6 PIM-SM on all interfaces in a PIM-SM domain, so that the interfaces can establish neighbor relationships with all connected PIM devices.

If IPv6 PIM-SM and MLD need to be enabled on the same interface, enable IPv6 PIM-SM, and then enable MLD.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    multicast ipv6 routing-enable

    The IPv6 multicast routing function is enabled.

  3. Run:

    interface interface-type interface-number

    The interface view is displayed.

  4. Run:

    pim ipv6 sm

    IPv6 PIM-SM is enabled.

(Optional) Configuring an SSM Group Policy

Context

By default, the address range of SSM groups is FF3x::/32 (x cannot be 1 or 2). You can configure an SSM group policy to control the SSM group address range for the following purposes:
  • Limiting the SSM group address range to ensure security of multicast networks
  • Expanding the SSM group address range if the addresses in the default range are insufficient

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    pim-ipv6

    The PIM-IPv6 view is displayed.

  3. Run:

    ssm-policy { basic-acl6-number | acl6-name acl6-name }

    The SSM group address range is configured.

    NOTE:

    Ensure that the SSM group address range of all devices in the network are the same.

Checking the Configuration

Prerequisites

After configuration of IPv6 PIM-SM in SSM model is complete, you can check the IPv6 PIM interface, IPv6 PIM neighbor, and IPv6 PIM routing table.

Procedure

  • Run the display pim ipv6 interface [ interface-type interface-number | up | down ] [ verbose ] command to check IPv6 PIM information on an interface.
  • Run the display pim ipv6 neighbor [ ipv6-link-local-address | interface interface-type interface-number | verbose ] * command to check information about IPv6 PIM neighbors.
  • Run the following commands to check the IPv6 PIM routing table.

    • display pim ipv6 routing-table [ ipv6-source-address [ mask mask-length ] | ipv6-group-address [ mask mask-length ] | flags flag-value | fsm | incoming-interface { interface-type interface-number | register } | mode { dm | sm | ssm } | outgoing-interface { exclude | include | match } { interface-type interface-number | none | register } ] * [ outgoing-interface-number [ number ] ]
    • display pim ipv6 routing-table brief [ ipv6-source-address [ mask mask-length ] | ipv6-group-address [ mask mask-length ] | incoming-interface { interface-type interface-number | register } ] *

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Updated: 2019-06-12

Document ID: EDOC1000097280

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