Layers of TCP/IP Models | Unit 1 | Computer Networks | BCA 201 | 3rd semester

Layers of TCP/IP Models

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Topics:
0:00 Intro of TCP/IP Model
0:10 Layers of TCP/IP Model
1:22 Application Layer
2:00 Protocols of Application Layer
2:28 Transport Layer
2:52 Protocols of Transport Layer
3:46 Internet Layer
4:10 Protocols of Internet Layer
4:43 Network Access Layer
5:24 The BCA World

Application Layer
topmost layer, tasks, connection maintenance, features
Protocols- HTTP (Hypertext Transfer Protocol), SMTP (Simple Mail Transfer Protocol), FTP (File Transfer Protocol)

Transport Layer
connection establishment, data division, data maintenance
Protocols- TCP (Transmission Control Protocol), UDP (User Datagram Protocol)- source port address, destination port address, total length, checksum

Internet Layer
Key functions
Protocols- IP (Internet Protocol), ARP (Address Resolution Protocol)

Network Access Layer
Data Link and Physical Layer Combination, Physical Address Usage, Comparing TCP/IP Models