VS config with multiple IIS sites

Separate VIPs and pools are certainly one way, but this is what it might look like otherwise:

1. Port 80 VIP and simple iRule to redirect all requests to port 443 VIP.

2. Port 443 VIP (same IP address), a client and server SSL profile, 2 pools, and an iRule:

   when HTTP_REQUEST {
       switch [string tolower [HTTP::host]] {
           "abc.xyz.com" {
               pool abc_pool
           }
           "abc12.xyz.com" {
               pool abc12_pool
               SSL::disable serverside
           }
       }
   }
   

The abc_pool would contain your port 443 servers and the enabled serverssl profile would appropriately re-encrypt to these servers. The abc12_pool would contain your port 80 servers and the iRule would disable the serverssl profile.