ipv6 pimsm-snooping

Enables PIM6 SM traffic snooping.
Syntax
ipv6 pimsm-snooping
no ipv6 pimsm-snooping
Command Default

PIM6 SM traffic snooping is disabled.

Modes

Global configuration mode

VLAN configuration mode

Usage Guidelines

The device must be in multicast listening discovery (MLD) passive mode before it can be configured for PIM6 SM snooping.

Use PIM6 SM snooping only in topologies where multiple PIM sparse routers connect through a device. PIM6 SM snooping does not work on a PIM dense mode router which does not send join messages and traffic to PIM dense ports is stopped. A PIM6 SM snooping-enabled device displays a warning if it receives PIM dense join or prune messages.

When PIM6 SM snooping is enabled globally, you can override the global setting and disable it for a specific VLAN.

The no form of this command disables PIM6 SM traffic snooping.

Examples

The following example enables PIM6 SM traffic snooping. 

device(config)# ipv6 multicast passive
device(config)# ipv6 pimsm-snooping

The following example disables PIM6 SM traffic snooping. 

device(config)# no ipv6 pimsm-snooping

The following example enables PIM6 SM traffic snooping on VLAN 20. 

device(config)# vlan 20
device(config-vlan-20)# untagged ethernet 1/1/5 ethernet 1/1/7 ethernet 1/1/11
device(config-vlan-20)# multicast6 passive
device(config-vlan-20)# multicast6 pimsm-snooping
Parent topic: Commands I