Disabling PIM SM snooping on a VLAN
When PIM SM snooping is enabled globally, you can still disable it for a specific VLAN. For example, the following commands disable PIM SM snooping for VLAN 20. This setting overrides the global setting.
device(config)#vlan 20 device(config-vlan-20)#multicast disable-pimsm-snoop
Syntax: [no] multicast disable-pimsm-snoop