An understanding of the following key points should have been achieved:

• The four major goals of LAN design
• Key considerations in LAN design
• The steps in systematic LAN design
• Design issues associated with Layers 1, 2, and 3
• The three-layer design model
• The functions of each layer in the three-layer model
• Cisco access layer switches and their features
• Cisco distribution layer switches and their features
• Cisco core layer switches and their features