ELB.13

Application, Network and Gateway Load Balancers should span multiple Availability Zones

Severity

Cloud Platforms

Resources

Related Standards

Automated

MEDIUM

AWS

Elastic Load Balancing

AWS Foundational Best Practice, NIST.800-53.r5,

This control checks whether an Elastic Load Balancer V2 (Application; Network; or Gateway Load Balancer) has registered instances from multiple Availability Zones. The control fails if an Elastic Load Balancer V2 has instances registered in less than 2 Availability Zones.