Connection mirroring will impact on load balancer performance.
Connection mirroring on VIP: The connection and persistence mirroring feature allows you to configure a BIG-IP system to duplicate connection and persistence information to the standby unit of a redundant pair. This setting provides higher reliability but may affect system performance.
SNAT pool:- A SNAT pool represents a pool of translation addresses that you configure on the BIG-IP system. The original IP address is then mapped to the entire translation pool, called a SNAT pool. For example, the following SNAT pool configuration contains the translation addresses 172.16.0.1 and 172.16.0.2
ltm snatpool /Common/my_snatpool {
members {
/Common/172.16.0.1
/Common/172.16.0.2
}
}
https://support.f5.com/csp/article/K7820
A persistence profile is a pre-configured object that automatically enables persistence when you assign the profile to a virtual server. By using a persistence profile, you avoid having to write a program to implement a type of persistence.