Hello.
Welcome back.
Now let's talk about Elastic Load Balancing very important and it integrates with a lot of public services
and very important for building scalable full tolerant solutions on it obvious weather beat Internet
facing load balancing to scale the tiers or the applications facing the Internet or their Web sites
or be it an internal application or internal database that you would like to load balance because you
have multiple instances of it within each of us.
This is very crucial to understand and find out.
And of course it is very important for whatever exam that you would like to sit for in yes.
So let's see what we are going to study exactly in this section.
So the agenda for Elastic Load Balancing includes three types of load balancers the classical one the
classic load balancer or COLB.
And that is the old one that was launched back in 2009 and I think now is being phased out by NWS and
it is the the last recommendation by Italy s to use among the different load balancers because the new
ones which are the application load balancer or L.B. and the network load balancer are much better much
better in terms of performance.
They are much cheaper in terms of pricing and also they are much rich in terms of features.
So the application load balancer will operate at the 7 Layer 7 of the ISI model or the TTP and it's
to be a layer basically and the network load balancer will function at the TTP layer or Layer 4 of the
same model.
If you recall from the classic the classic load balancer operates at Layer 4 and at least 7 as well
but with less performance and much less set of features and is more expensive as well.
OK.
So let's dive into the D section and find out what information do we have to gain and acquire.
All right.
So let's go ahead.
I'll see you in the first.