[AUDIO LOGO]
Welcome to OSPF area types.
In this skill, we're going to be jumping in and talking
about the different OSPF area types
that we have available to us.
These include things like the stub area, the total stub,
we have something called the not so stubby area or the NSSA,
and a total NSSA as well.
Then, of course, there's also the normal areas, which just
carry all the OSPF information.
The purpose of these areas is to control
which types of routes or really LSAs
get flooded or forwarded into which area type.
There's a lot of situations where
we don't need all the parts of our network to know
all the different prefixes.
That can be done for security reasons,
or ultimately, just to reduce the size of the routing table
on the devices.
So we have a bunch of different area types to go over.
So let's go ahead and jump in and get started.
I'll see you in the next video.