kskoh
ALB is currently not supported in our supported F5 CFT templates. They require Amazon's classic ELB. In our experimental section, we have CFTs using Amazon's NLB if you are interested...
Are you currently a F5 product user and have a representative from F5 you are working with in deployment? If so, I can speak with your F5 Sales engineer to...
@ArtiomL Good catch on the parameter name column. I see the other one now too "Public or External subnet ID"