Trying to write an irule which inspects url parameters to select the appropriate pool

You might want to check the specific parameter value to see if it ends in 0 or 1 instead of the full query string to be more exact. You can use [URI::query [HTTP::uri] id] to get the id parameter value.

 

 

And if subsequent requests don't have that parameter set and you still want to persist clients to the prior pool, you will probably want to set a cookie to track when a pool selection has been made and then look for that cookie on requests without the id parameter.

 

 

Here's a related example:

 

 

https://devcentral.f5.com/Community/GroupDetails/tabid/1082223/asg/50/aft/2158969/showtab/groupforums/Default.aspx2234700

 

 

Aaron