How Elastic Load Balancer Works?

A load balancer receives some incoming traffic from customers and then routes various requests to its listed targets (like EC2 instances) within the Availability Zones. The load balancer even governs the status of the listed targets and then assures that it will route the traffic solely to robust targets. Once the load balancer notices any weak target, it pauses the routing traffic to the particular target, and later reopens the routing traffic to the concerned target once it finds that the particular target is robust once again.

Customers set up their load balancer to receive incoming traffic by notifying various listeners. A listener is typically a procedure which verifies for connection requests. It is designed with some protocol along with port number for various connections from customers to the load balancer as well as a protocol with port number from the load balancer to their targets.

Elastic Load Balancing sustains three kinds of tech, named Application, Network, and Classic Load Balancers. There exist a major difference within their way of setting up those load balancers. With Application Load Balancers along with Network Load Balancers, customers will list targets under target groups, and then route traffic to the respective target groups. With the usage of Classic Load Balancers, customers records various instances with the load balancer.

What are the benefits of Load Balancer?


Slow websites simply turn away customers today – it’s a well-known fact. Consumers expect websites to respond as quickly as possible. As a result, you should do everything in your power to make sure your website is as fast as possible. Nevertheless, if your server is too busy, the first thing that will happen is that its speed will disappear.

Requests overwhelm servers when they are bombarded with them. This causes them to slow down, which affects loading speeds and response times. This can be solved using a load balancer. By doing this, your server’s performance is enhanced, and your website will run faster as well.


2.Optimum Security

Your servers are performing one extra task you might not be aware of when your website is SSL-certified (and it really should be). An SSL website encrypts all requests and associated data sent to it. Data is encrypted on the servers and must be decrypted before it can be processed. Defencrypting the data requires a lot of processing power.

As well as this, load balancers are useful. They decrypt data before sending it to a web server. The server can then simply process the input and send out the appropriate information. By doing this, you can use the server’s computation resources elsewhere.



Your site will need more resources as more people start visiting it. It isn’t enough to have a simple plan. Suddenly a lot of visitors can crash your website.

It is also possible that you are running marketing funnels to attract more visitors. However, as more and more visitors arrive, your website becomes slower. You’re caught in the middle.

It is much easier to manage this issue after introducing a load balancer into the mix. Your load balancer will manage all that extra traffic whenever there is a traffic spike with the power of multiple servers.


By quickly replacing defective and underperforming parts, there will be short or no downtime, and information can be gathered regarding which equipment requires service. Adding a load balancer to your website and applications adds a layer of security without requiring any changes.








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