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OK, so in this lecture, we are going to talk about multilayer switch and load balancer.



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So this is a multilayer switch.



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You can see on the screen it has multiple layers, a multilayered switch.



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MLS is a computer networking device that switches on open systems, interconnection that is always add



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layers layer to it is the datalink clear.



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It is like an orderly network switch, but it provides the routing.



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A 24 port multiclass, which gives you the best of both worlds, it operates a clear three while providing



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for collision domains which a router could not do 24 collision domains, which which means 24 different



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ports and 24 different domains so that there can be minimal or less collision avoidance.



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Now, the major difference between the packet switching operation of router and that of a layer three



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or multiple layers, which lies in the physical implementation.



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Intruder's Packards, which takes place using a microprocessor, whereas Laertes, which handles this



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by using application specific integrated circuit that is ASIC hardware on the screen is a picture of



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three, which you can see that they look like a layer two switches, but they're multi layers.



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And the major difference lies in the hardware inside of the multilayer switch and the operating system.



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Now, what is a load balancer from the name you can guess that this device might be reducing the load?



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Well, you are right.



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Your average doctor just sends incoming packets to the specified correlative IP addresses on the network.



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But a load balancer can actually send the incoming packets to multiple machines hidden behind one IP



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address.



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Cool, right?



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I mean, it really reduces the load.



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Today's load balancing the filters follow various rules to determine specifically how they will route



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network traffic.



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Depending upon your needs, you can set rules based on the least law, fault tolerance, fastest response



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time, or you can end up just dividing outbound requests for smooth network operation.



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Think about the scenario.



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OK, so you have a website where people are placing orders for the stuff you have got for sale.



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Obviously the orders placed vary in size and the rate at which they come in also varies.



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You definitely wouldn't want your servers becoming so overloaded that they rose up and crashed your



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site, causing you to lose a lot of money.



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Now, what would you do?



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That's where the load balancing of the traffic comes into picture, because even if one of the service



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freezes, your customers will still be able to access your site and place orders.



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That is why in today's world, sites like Google, Amazon, Apple and IBM, there are a whole lot of



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examples which actually use lower balances because they have a lot of visitors coming from all over



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the globe.



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Just imagine Amazon, how it might be handling the requests that are coming throughout the globe.



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Right.



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With the help of load balancer.



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You got it right.



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In the next lecture, we are going to talk about the DNS server, which is one of the most important



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topics in computer networking.