iRule for 2 urls to same pool but different websites

Hi Eddie,

It sounds like all of the ISA servers answer for all of the web applications by parsing the Host header in the requests. If so, you could just create a single VIP pointing to a single pool containing all of the ISA servers. LTM will load balance the requests irrespective of which app the request is for.

If you do need to split out the requests to a specific pool based on the Host header, you can use HTTP classes (in 9.4 and higher) or a fairly simple iRule:

 
 when HTTP_REQUEST { 
  
     Check the requested host header 
    switch [string tolower [HTTP::host]]{ 
       "site1.example.com" { 
          pool site1_pool 
       } 
       "site2.example.com" { 
          pool site2_pool 
       } 
       default { 
          pool default_pool 
       } 
    } 
 } 
 

Aaron