[j-nsp] networks aggregation

[Edwardo Garcia]

Halo,
repost, original not seem to make list?

Current we have 7 building, with 2 more being built next year.
These all have ex4200 and are link via an Rpi's, via ethernet to
central building.
Messy, many subnets and cheap design, but now central building need
undergo renovation in January, so need to fix the messy since  main
switch and router to be moved to admin building

I am hope to have a central switch where can link remote buildings to,
can use fibre, in fact prefere fibre, but need to have star
configuration,

Assume switch 1 is main.

want to link 1-2 1-3 1-4 1-5... etc and use virtual chasis if possible
for one big single lan, can this be done like this? I assume use fibre
in uplink port of remote 4200s to switch one,  if so what recommended
to use as switch one which will have 6+ fibre link into?  Be good if
switch one could also take standard ethernet port as well, but not
mandatory, we can use exisit 4200 in admin build.

thanks you - disclaim is networking and english are not my experience.