HTTP,TCP Profiles have more option in 11.5.4 then 9.5.x ltm version
i have manually configured all the configuration of old F5 3400 on new f5 4000s , waiting to integrate in the live environment as activity is not yet approved by the customer, The confusion i have is that the Profiles have to many new and different options which i have kept as default however what ever option i have found as per old F5 3400 with 9.5 version i have configured, Can some body tell me that when i will integrate in the existing system i will not face any problem as i have kept all the options in profiles which are new and different as it is.
When it comes to new feature settings in TCP and HTTP profiles, I would say your chances of facing a negative impact are quite low, unless you defer from the defaults. But why not go over the documentation to see what each of the options do?
General rule is that there's no such thing as 100% retention on functionality when doing major upgrades. New features and occasional default-profile over-rides are pushed into TMOS whether you want them or not. Thousands of 'insignificant settings' will change without your consent. Therefore, always assume some negative impact, unless you have done the exact same upgrade for an appliance running the exact same configuration elsewhere.