Design two campus networks that meet the following requirements. The first design should employ the campus-wide VLANs model using Catalyst 5509 switches. The second design should implement the multilayer model by using Catalyst 8540 MDF switches and Catalyst 5509 IDF switches. Here are the requirements:
The campus contains three buildings.
Each building has four floors.
Each floor has one IDF switch.
Each building has two MDF switches in the basement.
Each IDF has redundant links (one two each MDF switch).
The MDF switches are fully meshed with Gigabit Ethernet links (in other words, the core does not use a third layer of switches).
Each IDF switch should have a unique management VLAN where SC0 can be assigned.
In the campus-wide VLANs design, assume there are 12 VLANs and that every IDF switch participates in every VLAN.
In the multilayer design, assume that every IDF switch only participates in a single end-user VLAN (for administrative simplicity).
How many VLANs are required under both designs?
Figure A-9 illustrates a potential design utilizing the campus-wide VLANs model. Because the design is less modular than the multilayer model, this design is usually less scalable and harder to maintain. Each building is contained within a single distribution block.
Figure A-10 illustrates a campus design built around the multilayer model. Each distribution block is a self-contained unit. The switching router form of Layer 3 switches are used in the distribution Layer 3. To maximize the potential scalability of the network, a Layer 3 core is used.