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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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Adjusting Control Parameters for a Multicast Source in IPv6 Bidir-PIM

Adjusting Control Parameters for a Multicast Source in IPv6 Bidir-PIM

Context

After an IPv6 PIM device receives a multicast packet sent to group G, it starts a timer for the (*, G) entry and sets the timer to the multicast source lifetime. If the device receives a packet sent to the group before the timer expires, it resets the timer. If the device does not receive any multicast packet sent to the group within the lifetime, it considers the corresponding (*, G) entry invalid and deletes this entry. You can configure the multicast source lifetime.

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 Settings

Table 5-18 lists default settings of multicast source control parameters.

Table 5-18 Default settings 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 multicast source lifetime 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.

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

    • This command does not filter multicast packets that match the IPv6 PIM entries generated from statically configured MLD (*, G) entries.

  5. Run commit

    The configuration is committed.

Verifying the Configuration

After the control parameters of a multicast source are adjusted, run the following commands to check the IPv6 PIM routing table.

  • display pim ipv6 routing-table [ ipv6-group-address [ mask mask-length ] ] { rpf-interface interface-type interface-number | mode bidir } * [ outgoing-interface { include | exclude | match } { interface-type interface-number | none } | flags flag-value | fsm ] * [ 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: 2019-04-20

Document ID: EDOC1100075361

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