ELB - Cross-Zone

• Application Load Balancer

  • Enabled by default (can be disabled at the Target Group level)

  • No charges for inter AZ data

• Network Load Balancer & Gateway Load Balancer

  • Disabled by default

  • You pay charges ($) for inter AZ data if enabled

• Classic Load Balancer

  • Disabled by default

  • No charges for inter AZ data if enabled