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. One scenario where PIM SM snooping does not work, is on a PIM dense mode router which does not send join messages.

  1. Enter global configuration mode.
    device# configure terminal
  2. To specify the VLAN for which PIM SM snooping is to be disabled.
    device(config)# vlan 20
  3. To disable PIM sparse mode snooping, enter the multicast disable-pimsm-snoop command.
    device(config-vlan-20)# multicast disable-pimsm-snoop