True-IP persistence or source-IP if it doesn't exsist.

Hmmm, it doesn't look like it's working on our test website. It's not even falling back to source persistence. Am I supposed to be checking if a persistence profile already exists before assigning one in the variable? Am I clobbering already existing persistence assignments? Should I be doing what they're doing here:

 

http://devcentral.f5.com/Forums/tabid/53/aft/61948/Default.aspx

 

 

Which has this block of code:

 

 

when HTTP_REQUEST { 

 Check if there is an existing UIE persistence record 
if {[persist lookup uie "[IP::client_addr]_apps"] ne ""}{ 

 Use the existing UIE persistence record regardless of which URI was requested 
persist uie "[IP::client_addr]_apps"] 36000 

} else { 

 Check requested path 
switch -glob [HTTP::path] { 
"/apps/aml/*" { 
 Persist client for 10 hours using client IP _ apps 
persist uie "[IP::client_addr]_apps" 36000 
} 
default { 
 Persist client for 1 hour 
persist source_addr 3600 
} 
} 
} 
}  

 

 

 

I'm speculating I need that first line of code?