Hello everyone, and welcome to Protocol Deep Dive: OSPF.
My name is Sean Wilkins.
In this course we are going to take a [00:00: 09.400 ] closer look
into the Open Shortest Path First protocol or OSPF.
The purpose of this course is to take a more hands-on approach to learning OSPF.
This way the student will get a practical view into OSPF,
which is often very helpful.
This course will include five different modules,
starting with the Covering OSPF Basics module.
In this module we will introduce OSPF to the student,
specifically covering how it differs from the other routing protocols,
as well as some basics about its operation.
In the Forming Basic OSPF Relationships module,
we will move on from OSPF basics and take a look at how OSPF neighborships form,
including monitoring the packets as devices are initially communicating.
In the Discussing Simple OSPF Communications Blocks module,
we will take a closer look at how information is exchanged between OSPF devices,
including a review of the different link state advertisements
or LSAs that are used in single-area OSPF.
In the Introducing Multi-Area OSPF module,
we will introduce multi-area OSPF and how it is
used to bring hierarchy into OSPF.
This will include a review of the different device types,
area types,
and a review of the different LSAs that are used
when implementing multiple areas.
And finally, in the Troubleshooting Common OSPF Issues module,
we will finish up the course and discuss and
troubleshoot a number of common OSPF issues,
including those associated with mismatched timers,
priorities, and step conflicts.
Now that we have gone over the overall structure of the course,
let's move into the contents specific to this module,
the Covering OSPF Basics module.
We will begin the module with a section focusing on the different
types of routing protocols that are available and where OSPF fits
within these different options.
We then have a section that focuses on the OSPF metric,
how it is calculated, and how it is most often configured.
And finally we finish up this module with a section on
device and OSPF route selection.
Reviewing the process that a device follows when
determining the best route entry to select,
when multiple options exist. So now with all of this out of the way, let's get started.