Internet protocol
- 2. What is IP/TCP? • IP itself is like a postal system • IP stands for Internet protocol • It allows you to address a package and drop it in the system, but there is no direct link between sender and receiver • Protocol is the pre-defined way that someone wants to use a service talk with that service. The “someone” could be a person but usually it is a computer server or web browser
- 3. Basically… • In simple terms is a language that enables communication between computers • A set of rules (protocol) that defines how two computers address each other and send data to each other • Is a suite of protocols named after the two most important protocols TCP and IP but includes other protocols such as UDP, RTP, etc.
- 4. Purpose Of IP • The Internet protocol defines the basic unit of data transfer(IP DATAGRAM) • IP software performs the routing function
- 5. Datagrams Each datagram has two components Header Data Packets (Datagrams)
- 6. • Need a standard needs of communication between devices • Can’t communicate if speaking two different languages • Therefore we have a concept called “Protocol”
- 7. ORIENTATION IP is network layer protocol IPICMP IGMP ARP Network access TCP UDP Transport layer Network protocol Data link Layer
- 9. IP service IP supports the following services • Unicast • Broadcast • multicast
- 10. IP address Every machine on the internet has unique identifier number, called an IP address. A typical address looks like 217.27.61.741 To make it easier for us humans to remember , IP address are usually expressed in decimal Format as dotted decimal number like the one above, but computer communicates in binary form
- 11. STRUCTURE
- 12. *ISP: Internet Server Provider *