What are the different types of load balancers?

2.2 Types of Load Balancers – Based on Functions

• a.) Network Load Balancer / Layer 4 (L4) Load Balancer:
• b.) Application Load Balancer / Layer 7 (L7) Load Balancer:
• c.) Global Server Load Balancer/Multi-site Load Balancer:
• a.) Hardware Load Balancers:
• b.)
• c.)
• a) Round Robin Algorithm:
• b) Weighted Round Robin Algorithm:

Which load balancer are required for extreme performance?

If you need to load balance HTTP requests, we recommend you to use Application Load Balancer. For network/transport protocols (layer4 – TCP, UDP) load balancing, and for extreme performance/low latency applications we recommend using Network Load Balancer.

What problems does load balancing solve?

Load balancers help solve the performance, economy, and availability problems.

What are load balancers used for?

Load balancers are used to increase capacity (concurrent users) and reliability of applications. They improve the overall performance of applications by decreasing the burden on servers associated with managing and maintaining application and network sessions, as well as by performing application-specific tasks.

What are the four types of load balancers?

Elastic Load Balancing supports the following types of load balancers: Application Load Balancers, Network Load Balancers, and Classic Load Balancers.

Which load balancers support EC2-Classic?

ELB works at both layer 4 (TCP) and 7 (HTTP) and is the only load balancer that works in EC2-Classic, in case you have a very old AWS account. Also, it’s the only load balancer that supports application-defined sticky session cookies; in contrast, ALB uses its own cookies, and you have no control over that.

Can load balancers perform encryption?

The load balancer performs the work of encrypting and decrypting the traffic, instead of requiring each EC2 instance to handle the work for TLS termination. Network Load Balancers support TLS listeners. Classic Load Balancers support both HTTPS and TLS listeners.

How does load balancer improve performance?

SSL traffic is often decrypted at the load balancer. When a load balancer decrypts traffic before passing the request on, it is called SSL termination. The load balancer saves the web servers from having to expend the extra CPU cycles required for decryption. This improves application performance.