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TOPICS COVERED:
1. What is Elastic Load Balancer
2.The architecture of Amazon ELB
3.Features of Elastic Load Balancer
4.How Elastic Load Balancing works
5.Concepts of Amazon ELB
6.Concepts of Load Balancer Scheme
7.Application Load Balancer Overview
8.Components of Application Load Balancer
9.Benefits of Application Load Balancer
10.Getting Started with Application Load Balancers
11.Load Balancer Security Group, State and Attributes
12.Changing the IP Address Type, Deletion Protection and Idle Timeout of Elastic Load Balancer
13. Create an Application Load Balancer
14.Listeners for Application Load Balancer
15.Limits for your Application Load Balancer
16.Target Groups for your Application Load Balancer
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In a basic pattern, web servers are located behind a load balancer or elastic load balancer, which distributes traffic between them.
This way, if one among the servers becomes unavailable, the load balancer recognizes it and stops distributing traffic to the unhealthy instance. This ensures that within the event of a drag in one among the AZs where a component resides, your application remains available.
You can further increase the supply of your infrastructure using other methods, which we’ll discuss in possible posts on this blog.
Types of Amazon Elastic Load Balancing
Consequently, Elastic Load Balancing automatically distributes inbound application traffic across multiple destinations, like Amazon EC2 instances, containers, and IP addresses. you’ll handle the variable load of your application traffic during a single Availability Zone or in multiple zones.
Elastic Load Balancing supports three sorts of load balancers. Application Load Balancers, Network Load Balancers, and Classic Load Balancers. you’ll select a load balancer that supported the requirements of your application.
An Application Load Balancer (ALB) works at the appliance layer, the seventh layer of the Open Systems Interconnection (OSI) model. Application load balancers support content-based routing and support applications that run in containers.
Accepted protocols in Amazon Elastic Load Balancing
They support a few of industry-standard protocols (WebSocket and HTTP / 2). They also provide additional visibility into the status of target instances and containers. Websites and mobile apps running in containers or on EC2 instances can benefit.
This managed Application Load Balancer service is right for advanced load balancing of HTTP and HTTPS traffic. Provides advanced request routing that supports modern application architectures, including microservices and container-based applications.
The other alternative, the Network Load Balancer (NLB) is meant to handle tens of many requests per second. It maintains high performance at ultra-low latency, with no effort on your part. Accept incoming traffic from clients and distribute this traffic across targets within the supply Zone itself.
Network Load Balancer works at the connection level (Layer 4), routing connections to destinations: Amazon EC2 instances, containers, and IP addresses supported IP protocol data. The Network Load Balancer supports the appliance Load Balancer API. Includes full programmatic control of Target Groups and Destinations.
Network Load Balancer is right for balancing the load of TCP traffic. NLB is capable of handling many requests per second while maintaining ultra-low latencies. NLB is optimized to handle sudden and volatile traffic patterns. Only one static IP address is employed per Availability Zone.
Amazon Elastic Load Balancing in legacy mode
For the latter, we are left with the Classic Load Balancer (CLB) which provides basic load balancing in multiple Amazon EC2 instances and works at both the request level and therefore the connection level. Classic Load Balancer is meant for applications that were created within the EC2-Classic network, an old network option that’s not used, therefore it’s recommended to not use this feature unless you continue to use applications that were created within the network. EC2-Classic.
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