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Network protocols
1. Introduction to Protocols
A protocol is a set of rules for the exchange
of data between two computer or more
than two computers.
In internet various type of protocol uses for
transfer of different types of data for
example SMTP uses for mail transfer , FTP
uses for file transfer etc
3. Provides information about how and where
data should be delivered
Sub protocol that enables TCP/IP to
internetwork
To internetwork is to traverse more than one LAN segment and more than one type of
network through a router
In an internetwork, the individual networks that are joined together are called
subnetworks
IP is an unreliable, connectionless protocol, which means it does not guarantee delivery
of data
Allows protocol to service a request without requesting verified session and without
guaranteeing delivery of data
Internet Protocol (IP)
4. Transport Control Protocol (TCP)
TCP
Provides reliable data delivery services
Connection-oriented sub protocol
Requires establishment of connection between
communicating nodes before protocol will transmit data
TCP segment
Holds TCP data fields
Becomes encapsulated by IP datagram
5. TCP/IP Application Layer Protocols
Telnet
Used to log on to remote hosts using TCP/IP protocol
suite
File Transfer Protocol (FTP)
Used to send and receive files via TCP/IP
Simple Mail Transfer Protocol (SMTP)
Responsible for moving messages from one e-mail server
to another, using the Internet and other TCP/IP-based
networks
Simple Network Management Protocol (SNMP)
Manages devices on a TCP/IP network
6. Addressing in TCP/IP
IP Address Logical address used in TCP/IP networking Unique 32-bit number
Divided into four groups of octets (8-bit bytes) that are separated by
periods
IP addresses are assigned and used according to very specific parameters
7. Static IP address IP address manually assigned to a device. It can not be
changed
Dynamic Host Configuration Protocol (DHCP) Manages dynamic distribution of IP
addresses on a network you can see your ip adress by typing ipconfig /all in command
prompt.
8. This all about TCP/IP
Follow our next slide for more information
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