HTTP redirect to Pools members

This is assuming that you have more than one pool of web servers, otherwise configure the virtual server profile to point to a single defined pool on the resources tab.

when HTTP_REQUEST {
   switch -glob [string tolower [HTTP::uri]] {
      "/url1" {
         pool web
      }
      "/url2" {
         pool web2
      }
      default {
         pool web
      }
   }
}

"default" should point to whichever pool you want traffic to go to if the uri is different than those defined in the statement.