iRule and default pool

Yes, the second example should be functionally the same if you have the default pool set on the Virtual.

Also, as a side note, you can save a lot of processing overhead by replacing your regular expression with a simple equivalence match using either "equals", "ends with" or "contains" as necessary to achieve the result you're looking for.

Something like"

when HTTP_REQUEST {
   redirect /root/login.asp to https
  if { [HTTP::uri] equals "/root/login.asp"} {
    HTTP::redirect "https://[HTTP::host][HTTP::uri]"
  }
}

HTH,

Colin