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OSI model - Packet life

Open Systems Interconnection + packet life , show like a trip - Layer city design by mashaal ALsheeikh - king saud university
by

mesho ahmed

on 1 July 2013

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Transcript of OSI model - Packet life

Packet life
by Mashaal Alsheeikh

1- Physical layer
design by Dóri Sirály for Prezi
7- Application layer
interface between
communication
software and
application
{
protocols:
HTTP,FTP,POP
6- presentation layer
Define format
organize data
encryption
{
5-SESSION LAYER
Eatablishes and maintains
end-to-end flows
between endpoints
{
4-Transports LAYER
{
protocols:
TCP , UDP
PDU
: Segment
flow control ,
delivery data
error recovery
segmentation
+port address
80=HTTP
25=mail
21=FTP
3- Network layer
{
protocols:
STP,RIP,OSPF,ARP
PDU
: Packet
Routing
forwarding
path determination
+ IP address
Logical add
32 bit
2- Data link layer
{
protocols:
MAC, LLC
PDU
: Frame
Transmission onto physical medium.
recognize transmission errors
+ MAC address
physical add
define the electrical
optical,cabling,connectors
required for
transmitting bits

PDU
: bit
{
AT Receiver
01010100001001000111000
@Mesho_a
Transmission Control Protocol
connection-oriented protocol.
(Ack+flow control+windowing)
User Datagram Protocol
connection protocol
low overhead but
unrelible
Address Resolution Protocol
Spanning Tree Protocol
prevent bridge loops and
the broadcast radiation
Hypertext Transfer Protocol


foundation of data
communication for the
W
orld
W
ide
W
eb
Logical link control
Media Access Control
Full transcript