overview of ethernet hardware and protocol
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This pdf file contains a brief description about Ethernet hardware and protocol. For more information, please visit : http://www.shopricom.com/IBM_5718TRANSCRIPT
Overview of Ethernet Hardware and Protocol
By www.shopricom.com
Ethernet
Ethernet was developed at Xerox Palo Alto
Research Center, with a motive of connecting
several computers together in a network. It
is widely used in LAN technology .It supports data transmission rate of 10 Mb/s. Now a days it has been extended up to
100 Mb/s and 1 Gb/s.
Ethernet works in the physical and data link layer.
Physical and Data link layer is
present at 1st the 2nd position of the
Open Systems Interconnection
(OSI) model .
Ethernet uses bus or
star topology
To make proper utilization of Ethernet we need to have
Ethernet hardware and Ethernet protocol both. The
upcoming slides will provides you the details regarding it.
Ethernet Hardware
It can be classified into three parts. They are listed below
(i)Ethernet Card or Adapter
(ii)Ethernet Cable
(iii)Ethernet Hub
Ethernet Card or Adapter: It is the card which is installed in each PC. Computer uses this card for sending data across the network. It is connected to the computer via Ethernet cables. IBM 10GB Ethernetis one of the most effective adapters.
Ethernet Cable:It consist of
numerous wires. It is capable of
transferring data in both the
direction to and from the computer.
Ethernet Hub:It helps to connect several computers
together in a network. It has multiple ports.
To form a single network segment firstly it connects
Ethernet cable into the unit, and then
joins the other end of the cable to each computer's NIC.
Ethernet Protocol
It consist of three main components, such as Ethernet frame, the Physical Layer and
the MAC operation.
Frame Structures
Ethernet Frame
The data packets need to be send throughout the
network is known as Ethernet frames. The
above diagram represent the structure of a Ethernet frame.
Physical Layer
The Physical layer is responsible for encoding,
decoding, and synchronizing the data which is required to be
transfer across the network.
Ethernet uses CSMA/CD (Carrier Sense Multiple Access with Collision Detection) protocol. It helps to detect
collision between several transmitting stations. CSMA/CD
listen to the network carefully before sending any data packets. If any
collision occurs, a jam signal(which is 32bit binary pattern sends by a data station)is send to alert other stations. After a time interval the
process continues smoothly.
MAC Operation
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