F5 12800 no of supported route domains

in general F5 TMOS has almost no hard limits, at some point it will be just too much and things get slow.

but that a very big numbers in general so i wouldn't worry if you dont do anything really insane. best place to ask if you local sales, they might be able to check a number with development.

as for the local subnet and VIP subnet, that should work i believe.