11. 5. 1 Packet Tracer - Compare Layer 2 and Layer 3 Devices (Answers) 11 5 1 Packet Tracer – Compare Layer 2 and Layer 3 Devices (Instructor Version) Instructor Note: Red font color or gray highlights indicate text that appears in the instructor copy only Objective Part 1: Compare Layer 2 and Layer 3 Switches Part 2: Compare a Layer 3 Switch and a Router Background