Enabling PIM Sparse on a Specific VRF
PIM must be enabled globally and PIM Sparse Mode (PIM SM) can be enabled for a specific
virtual routing and forwarding instance (VRF).
By default, PIM is disabled. To enable PIM:
- Enable the feature globally.
- Configure the IP interfaces that will use PIM.
- Enable PIM DM locally on the ports that have the IP interfaces you configured for PIM.
To configure PIM SM on a virtual routing
instance (VRF), the vrf option and vrf-name
variable are added to the router pim command. All PIM parameters available for the default
router instance are configurable for a VRF-based PIM instance.
- Enter global configuration mode.
- Enable PIM for a specific VRF.
In this example, PIM is enabled for the VRF named blue. The VRF must be created before you specify it in this task step or you will receive an error message stating that the VRF does not exist.