RFC load balancing procedure 'Weighted Round Robin'

With Basis 7.00 Support Pack 15 SAP will release a new Weighted Round Robin load balancing procedure for RFC connections to your ABAP backend systems. This will ensure that load is distributed to ABAP servers based on their performance and not on a purely round robin method.. But you don't have to wait for Support Pack 15. You can also implement it as an advanced correction. See Note 1112104