There are several features of ELB. Each type of load balancer, be it a Classic Load Balancer, an Application Load Balancer, or a Network Load Balancer, has its own set of features. The following table illustrates these features and compares the three types of ELB. This comparison can help you in choosing the correct load balancer type depending on your requirements:
|
Features |
Application Load Balancer |
Network Load Balancer |
Classic Load Balancer |
|
Protocols |
HTTP, HTTPS |
TCP |
TCP, SSL/TLS, HTTP, HTTPS |
|
Platforms |
VPC |
VPC |
EC2-Classic, VPC |
|
Health checks |
 |
|
|
|
CloudWatch metrics |
|
|
|
|
Access logs |
|
|
|
|
Zonal fail-over |
|
|
|
|
Connection draining (deregistration delay) |
|
|
|
|
Route to multiple ports on a single instance |
|
|
|
|
Web sockets |
|
|
|
|
IP addresses as targets |
|
|
|
|
Load balancer deletion protection |
|
|
|
|
Path-based... |
