Dccn- Serial Line Internet Protocol

� Server: Dedicated device to perform specific
tasks in support of other computers on the
network
� File Server
� Allow to share files
� Print Server
� Control a single or group of printers
� Application Server
� To access and use extra computing power and
softwares
Few Definitions
� Client
� A client is a device use only to request services
from a network service provider
� Server
� Provides services to service requestors
� Peer
� Both request and provide network services
Communication between
Computers
� Connectionless Communication
� Do not guarantee delivery
� Faster compared to connection-oriented
� Example: ordinary postal service
� IP, UDP, IPX
� Connection-Oriented Communication
� Guarantee delivery
� Slower compared to connectionless
� Example: Registered Courier
� TCP, SPX, X.25
SLIP and PPP
� SLIP: Serial Line Internet Protocol
� Used to transmit IP packet over serial lines and
telephone connections
� As part of dial-up connection
� Supports TCP/IP only
� Do not support encryption
� PPP: Point-to-Point Protocol
� Used to transmit IP packet over serial lines and
telephone connections
� Supports multiple protocols

1. Data Communication
and Computer Networks
[EEE 314]
Mubashir Husain Rehmani Mubashir Husain Rehmani
Assistant Professor
Department of Electrical Engineering
COMSATS Institute of Information Technology,
Wah Cantt, Pakistan

2. Server

Server: Dedicated device to perform specific
tasks in support of other computers on the
network

File Server

File Server
Allow to share files

Print Server
Control a single or group of printers

Application Server
To access and use extra computing power and
softwares

3. Few Definitions

Client
A client is a device use only to request services
from a network service provider

Server

Server
Provides services to service requestors

Peer
Both request and provide network services

4. Communication between
Computers

Connectionless Communication
Do not guarantee delivery

Faster compared to connection-oriented

Example: ordinary postal service

Example: ordinary postal service

IP, UDP, IPX

Connection-Oriented Communication
Guarantee delivery

Slower compared to connectionless

Example: Registered Courier

TCP, SPX, X.25

5. SLIP and PPP

SLIP: Serial Line Internet Protocol
Used to transmit IP packet over serial lines and
telephone connections

As part of dial
-
up connection

As part of dial
-
up connection

Supports TCP/IP only

Do not support encryption

PPP: Point-to-Point Protocol
Used to transmit IP packet over serial lines and
telephone connections

Supports multiple protocols

Support encryption

6. IEEE 802 Standard
IEEE 802.1 Internetworking and Management
IEEE 802.2 Logical Link Control
IEEE 802.3 CSMA/CD or Ethernet
IEEE 802.4 Token Bus LAN
IEEE 802.5
Token Ring LAN
IEEE 802.5
Token Ring LAN
IEEE 802.6 MAN
IEEE 802.7 Broadband Technical Advisory Group
IEEE 802.8 Fiber-Optic Technical Advisory Group
IEEE 802.9 Integrated Voice/Data Networks
IEEE 802.10 Network Security
IEEE 802.11 Wireless Networks
IEEE 802.1 Demand Priority Access LAN