I have 3 sites A (hub), B (spoke) and C (spoke).
Each site has one switche - Cisco 3560
Site A is connected to B and C separately, (site B and C are not connected to each other)
Site A is also connected to a server that needs to be accessed from all three sites.
There will be different VLANs on each site and all of them need to access the server connected to site A.
VLANs need not talk with each other - only with server VLAN.
Create Trunks between sites.
Assign different VLANs to each client subnet connecting at different sites A, B and C.
Create ACLs to stop unneccessary VLAN communication
However, this method does not look scalable - I was thinking of using 'q in q' somehow... please give me some suggestions on what will be the most feasible options.
thank you very much