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WithF5's avatar
WithF5
Icon for Nimbostratus rankNimbostratus
Nov 27, 2017

You need to read about load balance methods... but to sum up.. L4 LB consider send the next connection to the server that has less active connections... while the L7 LB consider send the next connection to the server that has best perfomance...

 

This explanation is too overall.. there are a lot more about it... I suggest you to read this link.

 

https://support.f5.com/csp/article/K6406

 

https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm-concepts-11-4-0/5.html - Topic Local Traffic Manager load balancing methods