Hello I need assistance to create irule

Hello Lina_Osama , 

For what purpose you need to create an irule? or you only need to know how to create it(steps)

Please see the video for a understanding the steps - Create an iRule and apply it to a virtual server

Also, this KB - Article Detail

2.1.1. Lab 1 - Create an iRule that Parses the URI to Route Traffic

BR
Aswin