CLB versus ALB versus NLB comparison
The following table illustrates the differences between the three types of elastic load balancer. This will help in our discussion to decide which load balancer is best for your use case:
Figure 13.9 – Elastic load balancer comparison
As a general rule of thumb, it is normally better to not use a CLB on a new project and only use them in legacy applications that were built when CLBs were the only option.
CLB and ALB commonalities
Even though there are differences, CLBs and ALBs still have many features in common. All these features are supported by both:
- Security groups – Leveraging a Virtual Private Cloud (VPC) architecture, a security group can be mapped with AWS services including EC2 instances and ELB to provide extra security to the overall architecture.
- SSL termination – Terminating the SSL connection at the elastic load balancer level offloads the processing of SSL traffic from...