irule for the redirection

Dear Team,

 

 

Currently we have environment which is clustered and load balanced with F5. We have configured the rule in such a way if one the web url is unavailable the client request should be routed to next URL.But unfourtunately request is not being routed to second web url. can you pls provide some direction : Snippet of the logic is enclosed below.

 

 

when HTTP_REQUEST { if {[HTTP::host] equals "aeadebab"}{ HTTP::redirect "http://aeadsverp18-adp.adp.ae:7779/webcenter" }

 

 

else {

 

HTTP::redirect http://aeadsverp17-adp.adp.ae:7779/webcenter]

 

}

 

}