Hi, Sorry for this delay, so here is a simple network diagram of Hassan her University and the answers for the previous questions : General Qsts : 1- The compus can support over 1600 Host Devices, 1 Routing Switch, 5 Distributing Switchs and 28 Serving Switchs 2- 33 Buildings, distance unknown 3- With Fiber link between them Internet : 1- External connectivity with ADSL Type, 4 links, 20Mbps each. 2- Routes are statically routed to us. IP addressing : 1- For each Sub-Campus its own VLANs 2- Yes there is an addressing plan. 3- IP addresses are provider by the ISP provider. 4- No 5- 2 layers of NAT ( Not sure ) Routing vs Switching : 1- L3 (Routed) 2- OSPF 3- Yes