[AUDIO LOGO]
Welcome to Explain Outbound BGP Path Selection.
Getting BGP actually up and running with our neighborships
and learning prefixes is really only a very small part
of why we want to run BGP to begin with.
Yes, it's highly scalable, and we can carry thousands and even
millions of prefixes.
However, at the end of the day, one of the biggest attributes
of BGP is the ability to control its routing decisions.
This is often, of course, referred to as routing
by policy, and well, we have to write that policy.
So what we're going to be looking at in this skill
is how to do just that.
How do we manipulate the BGP attributes
in order to get BGP to choose the path that we
want it to choose?
So we'll start off here by looking at the overall BGP path
selection process.
There are quite a few steps in it, and then the ones
that we normally use to control path
selection, such as local preference, AS path prepending,
adjusting the multi-exit discriminator, or the MED,
or as Cisco calls it, the metric.
These are things we're going to be
looking at in more detail in their own separate videos.
So let's jump in and get started.
This is a lot of fun.
We'll see you in the next video.