Hundreds of MII located in plants connected to one ECC

Hello everybody.

Do some of you have any experience about connecting many MII (more than on hundred) connected to one central ECC using JRA ?

Are there specific points of care on which we must be vigilant ?

In particular could ECC be a bottleneck when hundred of MII make simultaneous RFC calls ?

Any advice or help would be appreciated ?

Thanks to all for your attention.

Best Regards.