[MUSIC PLAYING]
Hello, and welcome to discovering multicast routing.
In this skill, we're going to be taking a look at PIM operations
on our network.
So we'll start off with some overall operational
information.
We'll talk about things such as what an S,G entry is and how
this operates within our multicast routing table.
Then we'll jump into something called the RPF check,
or the Reverse Path Forwarding check.
We use this for two major things on our network, number one,
knowing where to send PIM join messages.
And number two, we also use it for loop prevention.
Then we'll jump into some detail on how
dense mode works with PIM in our multicast environment.
This is also referred to as flood and prune.
And I think by the time we get through
that, you'll understand why.
And finally, we'll wrap up with sparse mode operation, which
is generally the preferred method of how
we run PIM in our environment.
It's a little more complicated than dense mode,
but ultimately, more efficient.
So as you can hear, we have a lot of really cool stuff
to cover here.
So let's go ahead and jump in and get started.
I'll see you in the next video.