Introduction to Internet Protocol

2.1 Introduction

In the previous lesson you had learnt about the evolution of Internet and the various resources needed to access the Internet .  This lesson gives you a detailed working of protocols that are involved in the access of Internet .

2.3 Internet Protocols

The Internet protocol suite has many protocols in each layer.  The following diagram depicts the internet protocol suite.

Five Layered TCP/IP suites

Layer Protocol
Network Layer IP(IPv4 . IPv6) . OSPF . IS-IS . BGP . ARP . RARP . RIP . ICMP .  ICMPv6 . (more)
Data link Layer LAN. Wi-Fi. Ethernet.   Token ring.      FDDI. ISDN (more)
Physical Layer Modems . Optical Fiber . Coaxial cable, Twisted pair
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