Why Cannot an MDT Be Set Up Correctly If PIM Is Not Enabled on an RPF Interface?

Adamcolob · Created May 15, 2017 07:24:49

The PIM protocol does not maintain its own unicast routing table. Instead, it uses the existing unicast routing table as a basis for the RPF check. Generally, the object of the RPF check is the multicast source. On a PIM-SM network, the objects of the RPF check can be the multicast source, RP, and BSR. For an object, the PIM device searches the existing unicast routing table for an optimal route to the object. The outbound interface of the route acts as an RPF interface. You can see that the RPF interface completely depends on the existing unicast route and is independent of the PIM protocol. The PIM protocol, however, requires that the RPF interface be enabled with PIM. This requirement must be guaranteed through network design. If the RPF interface is not enabled with PIM, the MDT cannot be correctly set up and hence multicast forwarding fails.

Solution: Enable the PIM protocol on the RPF interface.

albertR · Created May 14, 2020 18:57:32

Nice job

albertR · Created May 14, 2020 18:57:38

thanks

Why Cannot an MDT Be Set Up Correctly If PIM Is Not Enabled on an RPF Interface?-3304452-1

Why Cannot an MDT Be Set Up Correctly If PIM Is Not Enabled on an RPF Interface?

Third Party’s Trade Secret

My Followers

Enterprise

Consumer

Corporate

Carriers

Why Cannot an MDT Be Set Up Correctly If PIM Is Not Enabled on an RPF Interface?

Third Party’s Trade Secret

My Followers