Scenario 21 Answers Small Campus Network Design

1 See Figure 2-13 for a network drawing. For a network of this size, a collapsed core can be used, as shown in the diagram.

Figure 2-13 Network Diagram for Scenario 2-1 Solution

Figure 2-13 Network Diagram for Scenario 2-1 Solution

2 Access layer switches could be Catalyst 1900, if 10-Mbps Ethernet will be used for a long time. Otherwise, Catalyst 2900XL or 3500XL switches could be used for 10/100 connectivity.

3 At the distribution layer, either Catalyst 2926G, 2948G-L3, or Catalyst 5000s with an RSM could be used. (The current size of this network does not warrant Layer 3 functionality; a flat, switched network would work fine until the network grows.)

4 A core layer is not necessary. With the collapsed core design, however, growth and scalability are easily managed by adding switch blocks.

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