Elastic Load Balancer - Cross Zone Load BalancingΒΆ
With Cross Zone Load Balancing: - each load balancer instance distributes evenly across all registered instances in all AZ
Without Cross Zone Load Balancing: - Requests are distributed in the instances of the node of the Elastic Load Balancer
Application Load Balancer: - Always on (can't be disabled) - No charges for inter AZ data
Network Load Balancer - Disabled by default - You pay charges ($) for inter AZ data if enabled
Classic Load Balancer - Through Console - enabled by default - Through CLI/API - disabled by default - No charges for inter AZ data if enabled