Requirements for using multiple availability zones in network load balancer

Question

Are there any requirements for using multiple availability zones for network load balancer in AWS?

Answer 1

These are requirements for using multiple availability zones for your network load balancer:

• The subnets that you use must have at least 8 available IP addresses.
• You can't specify subnets that were shared with you by another AWS account.
• You can't specify a subnet in a constrained Availability Zone.