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Configure IP Multicast Forwarding Rule

Configuration Condition

Before configuring the multicast forwarding management edge of the interface, first complete the following task:

  • Configure interface IP address, making the neighboring node network layer reachable
  • Enable IP multicast forwarding
  • Configure multicast route protocol

Configure Multicast Forwarding Management Edge

After configuring the management edge, the device can filter the multicast service packets and the multicast service packets not matching the access list rules cannot be forwarded from the interface.

Table 4-3 Configure multicast forwarding management edge

Step

Command

Description

Enter global configuration mode

configure terminal

-

Enter interface configuration mode

interface interface-name

-

Configure multicast forwarding management edge

ip multicast boundary { access-list-number | access-list-name }

Mandatory
By default, the multicast forwarding management edge is not configured.

Configure Multicast Forwarding Entry Timeout

Configure the timeout of the multicast forwarding entry. After timeout, delete or perform other operations by the entry tag.

Table 4-4 Configure the timeout of the multicast forwarding entry

Step

Command

Description

Enter global configuration mode

configure terminal

-

Configure the timeout of the multicast forwarding entry

ip multicast mrt-timer timevalue

Optional

By default, the timeout of the multicast forwarding entry is 180s.

Configure Multicast Forwarding Entry Limitation

Configure the maximum number of the multicast forwarding entries. After exceeding the maximum number of the multicast forwarding entries, the new multicast forwarding entry is not created.

Table 4-5 Configure multicast forwarding entry limitation

Step

Command

Description

Enter global configuration mode

configure terminal

-

Configure multicast forwarding entry limitation

ip multicast route-limit number-value [ vrf vrf-name ]

Optional

By default, the maximum number of the multicast forwarding entries is 6144.