One-Way Persistence records problem

The iRule that we successfully tested on Friday had some minor adjustments made because somewhere in the back end something was wanting the pool name as well 😕

 iRule Name: JSESSIONID_Persist_v4
 Last Mod: AT 2015/09/04

when HTTP_REQUEST {
 Check if there is a JSESSIONID cookie in the request header.
if { [HTTP::cookie "JSESSIONID"] ne "" }{
 Run a lookup for any existing records, return relevant values for any matches 
 otherwise ignore and follow load balancing method to select destination server.
set ppool [ persist lookup uie [string tolower [HTTP::cookie "JSESSIONID"]] pool ]
set pnode [ persist lookup uie [string tolower [HTTP::cookie "JSESSIONID"]] node ]
set pport [ persist lookup uie [string tolower [HTTP::cookie "JSESSIONID"]] port ]
if { $pnode != "" }{
pool $ppool member $pnode $pport
}
}
}
when HTTP_RESPONSE {
 Check if there is a jsessionid cookie in the response.
if { [HTTP::cookie "JSESSIONID"] ne "" }{
 Persist off of the cookie value with a timeout of 6 minutes to ensure that 
 the F5's persistence entry will not expire before the server token.
persist add uie [string tolower [HTTP::cookie "JSESSIONID"]] 315
}
}