So let's finish up this module by taking a look at the
different things that were discussed.
We begin with a section discussing the way that OSPF devices initially
communicate to determine what information needs to be exchanged.
We then moved into three different sections that covered the three different
link state advertisements that are used with single area OSPF.
These included the router or type 1 LSA,
the network or type 2 LSA, and the external or type 5 LSA.
Each of these sections had a theory and lab section that delved
into the details specific to each one of them.
I hope that this information was useful and will help further your understanding of OSPF.