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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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Adjusting Control Parameters of a Multicast Source

Adjusting Control Parameters of a Multicast Source

Pre-configuration Tasks

Before setting the parameters for controlling a multicast source, complete the following task:

Configuring Basic IPv6 PIM-DM Functions

Context

After a PIM device receives a multicast packet from a multicast source, it starts a timer for the (S, G) entry and sets the timer to the lifetime of the source. If the device receives a packet from the source before the timer expires, it resets the timer. If the device does not receive any multicast packet from the source within the lifetime of the source, it considers the corresponding (S, G) entry invalid and deletes this entry.

You can configure the lifetime of the source. To control multicast traffic or ensure data security, configure source address-based filtering policies on the device so that the device accepts only multicast data allowed by the policies.

Default Configuration

Table 5-3 lists default configuration of control parameters for a multicast source.

Table 5-3  Default configuration of multicast source control parameters
Parameter Default Setting

Keepalive period of a multicast source

210s

Source address filtering policy

No policy configured (Multicast data from all sources is accepted.)

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    pim-ipv6

    The PIM-IPv6 view is displayed.

  3. Run:

    source-lifetime interval

    The lifetime of a multicast source is configured.

  4. Run:

    source-policy { acl6-number | acl6-name acl6-name }

    A multicast source address-based filtering policy is configured.

    • If a basic access control list (ACL) is specified in the command, the allowed multicast packets are specified by the source parameter in the rule configured under the basic ACL. The device forwards only the multicast packets with the source addresses allowed by the filtering policy.

    • If an advanced ACL is specified in the command, the allowed multicast packets are specified by source and destination parameters in the rule configured under the advanced ACL. The device forwards only the multicast packets with both source addresses and group addresses allowed by the filtering policy.

    • If the specified ACL contains no rule, the device does not forward multicast packets from any sources.

    • The source-policy command does not filter the static (S, G) entries.

Checking the Configuration

Run the following commands to check the IPv6 PIM routing table.

  • Run the 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 ] ] command to check detailed information about the IPv6 PIM routing table.

  • Run the 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 } ] * command to check brief information about the IPv6 PIM routing table.

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Updated: 2019-06-12

Document ID: EDOC1000097280

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