Simplifying route irules

Anything else I can think of would require looping through the datagroup element by element. I think what you've got is probably the most efficient even if it's a bit inelegant to have nearly duplicate entries in two separate datagroups.

You should move the second lookup into an elseif clause to avoid doing a second lookup if the first one matched. Or you could put it in one if clause with an ||. But I think elseif might be a bit more legible.

You could remove the -name option from both class commands as you're not doing anything with the matching element.

 Route traffic to server1 if URL listed in class_goto_server1
when HTTP_REQUEST {
   set $HTTPuri [string tolower [HTTP::uri]]
    URL starts_with check and Node select 
   if {[class match $HTTPuri starts_with class_toserver1_StartsWith]} {
      pool server_1
   } elseif {[class match $HTTPuri equals class_toserver1_Equals]} {
      pool server1
   }
}

Aaron