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| Lecture - 2 Network Topology | Lecture - 3 Physical Medium - I | Lecture - 4 Physical Medium - II |
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| Lecture -5 Multiplexing (Sharing a Medium) | Lecture - 6 Telecom Networks | Lecture - 7 Switches - I |
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| Lecture - 8 Pocket Switches | Lecture - 9 SONET/SDH | Lecture - 11 Routing and Wavelength Assignment |
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| Lecture - 12 Protection and Restoration | Lecture - 13 Multiple Access | Lecture - 14 Token Based Mac |
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| Lecture - 15 Data Link Protocols | Lecture - 16 Error Control | Lecture - 17 Stop & Wait Protocol |
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| Lecture - 18 Satellite Communication | Lecture - 20 Modern Ethernet |
