pim snooping enable

Function

The pim snooping enable command enables PIM over PPPoE on a BAS interface.

The undo pim snooping enable command disables PIM over PPPoE on a BAS interface.

By default, PIM over PPPoE is disabled.

Format

pim snooping enable

undo pim snooping enable

Parameters

None

Views

BAS interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
pim	write

Usage Guidelines

Usage Scenario

Usually, users can send IGMP protocol messages to Layer 3 multicast devices for multicast access. However, VPN users cannot directly send IGMP protocol messages to Layer 3 multicast devices to access multicast services. In this case, PIM can be used to address this problem, but PIM cannot authenticate or charge users. To solve this problem, you can run the pim snooping enable command to enable PIM over PPPoE.

Prerequisites

On the interface, the pim sm command has been used to enable PIM-SM and the multicast copy by-session command has been used to set a multicast replication type.

Precautions

PIM over PPPoE cannot work with the following features:

IGMP: If the igmp enable command is configured, the pim snooping enable command cannot be used.
PIM DM: If the pim dm command is configured, the pim snooping enable command cannot be used.
PIM BFD: If the pim bfd enable command is configured, the pim snooping enable command cannot be used.
PIM Silent: If the pim silent command is configured, the pim snooping enable command cannot be used.
MLD: If the mld enable command is run, the pim snooping enable command cannot be used.

Example

# Enable PIM over PPPoE.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/2
[~HUAWEI-GigabitEthernet0/1/2] pim sm
[*HUAWEI-GigabitEthernet0/1/2] bas
[*HUAWEI-GigabitEthernet0/1/2-bas] access-type layer2-subscriber
[*HUAWEI-GigabitEthernet0/1/2-bas] multicast copy by-session
[*HUAWEI-GigabitEthernet0/1/2-bas] pim snooping enable