l2-multicast pim router-port (VLAN view)

Function

The l2-multicast pim router-port command configures a device to forward the PIM messages of a specific VLAN only to router interfaces.

The undo l2-multicast pim router-port command restores the default configuration.

By default, a device broadcasts received PIM messages, so that both router interfaces and non-router interfaces can receive PIM messages.

Format

l2-multicast pim router-port

undo l2-multicast pim router-port

Parameters

None

Views

VLAN view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l2mc	write

Usage Guidelines

Usage Scenario

If a Layer 2 multicast device does need to forward PIM messages to its connected non-multicast devices, run the l2-multicast pim router-port command, so that the Layer 2 multicast device forwards PIM messages only to router interfaces. This configuration frees the connected non-multicast devices from processing PIM messages, reducing message forwarding and processing workloads and bandwidth consumption.

Prerequisites

IGMP snooping has been enabled using the igmp-snooping enable command in the system view and then in the VLAN or VSI view.

Example

# Configure the device to forward the PIM messages of VLAN 10 only to router interfaces.

<HUAWEI> system-view
[~HUAWEI] igmp-snooping enable
[*HUAWEI] commit
[~HUAWEI] vlan 10
[*HUAWEI-vlan10] igmp-snooping enable
[*HUAWEI-vlan10] l2-multicast pim router-port