- Now that we've examined EIGRP in this section,
we'll cover the most popular
interior gateway routing protocol out there today,
at least according to my students that I've been serving,
and that's OSPF, or open shortest path first.
And after reviewing some of the basics of OSPF,
we'll check out several OSPF features,
such as how its timers work,
how it calculates its metric,
the different OSPF of network types,
and one of the most challenging SPF topics for many people,
and that's OSPF LSA Types.
We'll also demonstrate how to configure OSPF Version 2,
and we'll take a look at a couple of ways
of configuring OSPF Version 3.
But let's get started by reviewing some OSPF fundamentals.