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INTERNETCOMMUNICATION
SYSTEM
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HISTORY
Professor LeonardKleinrock with one ofthe first ARPANETInterface Message
Processors at UCLA
http://en.wikipedia.org/wiki/Leonard_Kleinrockhttp://en.wikipedia.org/wiki/Leonard_Kleinrockhttp://en.wikipedia.org/wiki/Interface_Message_Processorhttp://en.wikipedia.org/wiki/Interface_Message_Processorhttp://en.wikipedia.org/wiki/Interface_Message_Processorhttp://en.wikipedia.org/wiki/Interface_Message_Processorhttp://en.wikipedia.org/wiki/Leonard_Kleinrockhttp://en.wikipedia.org/wiki/Leonard_Kleinrock8/3/2019 Internet Communication System[1][1]
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HISTORY
This NeXT Computerwas used by Sir TimBerners-Lee at CERNand became the
world's first Webserver.
http://en.wikipedia.org/wiki/NeXT_Computerhttp://en.wikipedia.org/wiki/Sir_Tim_Berners-Leehttp://en.wikipedia.org/wiki/Sir_Tim_Berners-Leehttp://en.wikipedia.org/wiki/CERNhttp://en.wikipedia.org/wiki/Web_serverhttp://en.wikipedia.org/wiki/Web_serverhttp://en.wikipedia.org/wiki/Web_serverhttp://en.wikipedia.org/wiki/Web_serverhttp://en.wikipedia.org/wiki/CERNhttp://en.wikipedia.org/wiki/Sir_Tim_Berners-Leehttp://en.wikipedia.org/wiki/Sir_Tim_Berners-Leehttp://en.wikipedia.org/wiki/Sir_Tim_Berners-Leehttp://en.wikipedia.org/wiki/Sir_Tim_Berners-Leehttp://en.wikipedia.org/wiki/NeXT_Computer8/3/2019 Internet Communication System[1][1]
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INTERNET
Short form of the technical terminternetwork.
Hardware and software infrastructure thatprovides connectivity between computers.
Global system of interconnected computer
networks that use the standard InternetProtocol Suite (TCP/IP) to serve billions ofusers worldwide.
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INTERNET
Global system of interconnectedcomputer networks
two or more computers connected to each other
by communication channels that facilitatecommunications among users and allows users to
share resources
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COMPUTER NETWORK
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COMPUTER NETWORK
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COMPUTER NETWORK
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INTERNET
Short form of the technical terminternetwork
is the practice of connecting a computer network
with other networks through the use of gateways
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INTERNETWORK
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INTERNETWORK
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INTERNET
GATEWAY (TELECOMMUNICATIONS)
- a network node equipped for interfacing withanother network that uses different protocols.
Juniper SRX210 service gateway
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PROTOCOLS
- are the agreed upon ways, communicationlanguage and a set of rules which both the
networking computers understand andcommunicate with each other.
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INTERNET PROTOCOL SUITE
a model architecture that dividesmethods into layered system of protocols.
Also known as TCP/IP named from two ofthe most important protocols in it: theTransmission Control Protocol (TCP) and
the Internet Protocol (IP).
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INTERNET PROTOCOL SUITE
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INTERNET PROTOCOL SUITE
APPLICATION LAYER
- the space for the application-specificnetworking methods used in software
applications.
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INTERNET PROTOCOL SUITE
TRANSPORT LAYER
- connects applications on different hostsvia the network with appropriate data
exchange methods.
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INTERNET PROTOCOL SUITE
INTERNET LAYER
- enables computers to identify and locateeach other via Internet Protocol (IP)
addresses, and allows them to connect toone-another via intermediate (transit)networks.
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INTERNET LAYER
INTERNET PROTOCOL ADDRESS
(IP address)
- numerical label assigned to each deviceparticipating in a computer network that uses theInternet Protocol for communication.
- binary numbers but they are usually stored in
text files and displayed in human-readablenotations.
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INTERNET PROTOCOL ADDRESS
Ex.
172.16.254.1 (for IPv4)
2001:db8:0:1234:0:567:8:1 (for IPv6)
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INTERNET LAYER
DOMAIN NAME SYSTEM
- naming system built on a distributed database
for computers, services, or any resourceconnected to the Internet or a private network.
- it translate domain names meaningful to humaninto the numerical identifiers associated with
networking equipment for the purpose of locatingand addressing these device worldwide.
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DOMAIN NAME SYSTEM
Ex.
www.example.com
192.0.32.10 (IPv4)
2620:0:2d0:200::10 (IPv6)
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INTERNET PROTOCOL SUITE
LINK LAYER
- lowest layer in the Internet Protocol
Suite
- transfers data between adjacent networknodes in a wide area network or between
nodes on the same local area networksegment.
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LINK LAYER
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OPEN SYSTEMS INTERCONNECTION
(OSI)
Is an effortto standardize networking thatwas started in 1977 by the InternationalOrganization for Standardization (ISO),along with the Telecommunication
Standardization Sector (ITU-T).
http://en.wikipedia.org/wiki/Standardizationhttp://en.wikipedia.org/wiki/Standardization8/3/2019 Internet Communication System[1][1]
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DATA LINK LAYER
LOGICAL LINK CONTROL (LLC)
- specifies which mechanisms are to be
used for addressing stations over thetransmission medium and for controllingthe data exchanged between theoriginator and recipient machine.
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DATA LINK LAYER
MEDIA ACCESS CONTROL (MAC)
- determines who is allowed to access the
media at any one time.- determines where one frame of dataends and the next one starts Frame
Synchronization.
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