This topic is to discuss the following lesson:
Hello Everyone,
What will happen if we will not enable pim on loopback interfaces specially on spine ?
Regards
Hello Amit
Strictly speaking, you don’t need to enable PIM sparse mode on the loopbacks of the devices you are using. However, in the specific topology, Rene has chosen to use the loopback interface of the spine switch as the address of the RP. This is typically best practice as you can see from this lesson here. So for this particular case, if you don’t enable PIM sparse mode on the loopback, it cannot participate as the RP of the topology.
I hope this has been helpful!
Laz