Another reason is, that Round Robin is a static method and doesn't care about any unequal load over time. It might be the case that requests to server A require more time (either to more complexity or because server A has less performance than server B) and sessions will be closed later.
That's why I would recommend to use a dynamic method like Least Connections to handle such scenarios much better.
Regards Stefan 🙂
So i think it relate about function CMP on F5, I try to summary and infromation with diagram below
Please find more information in linke below,