Need advice to design LAN routing (attached the image). Planning to use OSPF, so how to breakdown the area?
and Other advice really appreacited.
The current design has 3 pairs Distribution Switch (A&B) and edge switches (access Sw) will attach to each Distribuition.
So far only 3 pairs, it will be expanded to be more than 10 pairs Distribution.
Servers or IP PBX will be in different vlan. Connection to WAN is via router (mpls/vpn/BGP).
Admin&Access Building is just access switches.
Many thanks in advance .