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- Daniel_W_Cirrus
This example should help you: https://devcentral.f5.com/s/articles/ratio-load-balancing-using-rand-function
 
Just use if { rand() < 0.1 } { ...
 
 
- Samir_Jha_52506Noctilucent
It will be good if you throw some more light here. I tried to prepare irule based on above conditions. you can edit & apply based on condition.
when HTTP_REQUEST { if { rand() < 0.1 } { if { [HTTP::cookie exists "old-cookie-name"] } { Insert a new cookie with the new name and old cookie's value HTTP::cookie insert name "new-cookie-name" value [HTTP::cookie value "old-cookie-name"] Remove the old cookie HTTP::cookie remove "old-cookie-name" } } }