Good day all,
I am trying to size the instances of a new multi-instance Cisco Secure Firewall 4225 FTD deployment and I'm confused regarding the amount of CPU/cores I can play with. The documentation states that the device has 128 cores and that the maximum number of instances is 15.
My simple math is that:
128 / 15 = 8.5 cores
So 8 cores per instance.
But at the same time, the minimum number of cores per context is 6:
128 / 6 ~= 21 instances
I can't find any reference in the documentation about the core distribution/reservation done by the device apart from each instance reserving 2 cores for management.
Anyone has any clues?