SlideShare une entreprise Scribd logo

1st Talk

•Télécharger en tant que PPT, PDF•
•
A
Aniruddha Das

The document discusses network topologies and protocols. It covers basic topologies like bus, ring and star and derived topologies like tree and mesh. It then discusses protocols for unicast, multicast and broadcast transmission. Finally, it discusses concepts like packets, frames, bandwidth and different types of networks classified by size and physical medium.

1  sur  75
Overview
Network Users
Topology ,[object Object],[object Object],[object Object],[object Object],[object Object]
Bus ,[object Object],[object Object],[object Object]
RING ,[object Object],[object Object]
STAR ,[object Object]
Topology: Derived ,[object Object]
Why So Many Topologies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Ring: Adv. & Dis. Adv. ,[object Object]
Star: Adv. & Dis. Adv. ,[object Object],[object Object],[object Object],[object Object]
Tree & Mesh: Adv. & DisAdv. ,[object Object],[object Object],[object Object]
Physical & Logical Topology
Unicast, Broadcast, Multicast ,[object Object],[object Object],[object Object]
Message, Frame & Packet ,[object Object],[object Object],[object Object]
Bit Rate, Baud Rate, Bandwidth ,[object Object],[object Object],[object Object],[object Object],[object Object]
Arrival rate, Departure rate and Propagation ,[object Object],[object Object],[object Object]
How Networks Evolved ,[object Object],[object Object],[object Object]
How Computer Network Evolved (Contd.) ,[object Object],[object Object]
Network Classification ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What’s the Internet: “nuts and bolts” view ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],local ISP company network regional ISP router workstation server mobile
What’s the Internet: “nuts and bolts” view ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],local ISP company network regional ISP router workstation server mobile
What’s the Internet: a service view ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What’s a Network protocol? ,[object Object],[object Object],protocols define: - format, - order of message sent and received among network entities, - actions taken on message transmission, receipt
What’s a protocol? ,[object Object],Hi Hi TCP connection req. Got the time? 2:00 TCP connection reply. Get http://gaia.cs.umass.edu/index.htm <file> time
A closer look at network structure: ,[object Object],[object Object],[object Object],[object Object],[object Object]
The network edge: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network edge: connection-oriented service ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network edge: connectionless service ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Network Core ,[object Object],[object Object],[object Object],[object Object]
Network Core: Circuit Switching ,[object Object],[object Object],[object Object],[object Object],[object Object]
Network Core: Circuit Switching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Circuit Switching: FDMA =WDMA and TDMA FDMA frequency time TDMA frequency time 4 users Example:
Network Core: Packet Switching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network Core: Packet Switching ,[object Object],A B C 10 Mbs Ethernet 1.5 Mbs 45 Mbs statistical multiplexing queue of packets waiting for output link D E
Network Core: Packet Switching ,[object Object],[object Object],[object Object],[object Object]
Packet switching versus circuit switching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],N users 1 Mbps link ,[object Object],[object Object]
Packet switching versus circuit switching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Packet Switching Vs Message Switching ,[object Object],[object Object],[object Object],[object Object],[object Object]
Packet-switched networks: routing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Access networks and physical media ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Residential access: point to point access ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Residential access: cable modems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Residential access: cable modems
Institutional access: local area networks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Wireless access networks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],base station mobile hosts router
Home Networks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],wireless access point wireless laptops router/ firewall cable modem to/from cable headend Ethernet (switched)
Physical Media ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Physical Media: coax, fiber ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Physical media: radio ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Delay in packet-switched networks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],A B propagation transmission nodal processing queueing
Delay in packet-switched networks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Note: s and R are very different quantities! A B propagation transmission nodal processing queueing
Queueing delay (revisited) ,[object Object],[object Object],[object Object],traffic intensity = La/R ,[object Object],[object Object],[object Object]
Why Network Software ,[object Object],[object Object],[object Object]
What & Why Protocol? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Protocol “Layers” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
How Many Protocols? ,[object Object],[object Object],[object Object]
Protocol Suites ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Organization of air travel ,[object Object],ticket (purchase) baggage (check) gates (load) runway takeoff airplane routing ticket (complain) baggage (claim) gates (unload) runway landing airplane routing airplane routing
Organization of air travel : a different view ,[object Object],[object Object],[object Object],ticket (purchase) baggage (check) gates (load) runway takeoff airplane routing ticket (complain) baggage (claim) gates (unload) runway landing airplane routing airplane routing
Distributed implementation of layer functionality ticket (purchase) baggage (check) gates (load) runway takeoff airplane routing ticket (complain) baggage (claim) gates (unload) runway landing airplane routing Departing airport arriving airport intermediate air traffic sites airplane routing airplane routing airplane routing
Why layering? ,[object Object],[object Object],[object Object],[object Object],[object Object]
ISO’s 7-Layer Model (OSI)
Functions of Layers in OSI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Protocol Header ,[object Object],[object Object],[object Object]
ISO-OSI Layered Architecture
Internet protocol stack ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],application transport network link physical
Layering: logical communication ,[object Object],[object Object],[object Object],[object Object],application transport network link physical application transport network link physical application transport network link physical application transport network link physical network link physical
Layering: logical communication ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],transport transport application transport network link physical application transport network link physical application transport network link physical application transport network link physical network link physical data data data ack
Layering: physical communication application transport network link physical application transport network link physical application transport network link physical application transport network link physical network link physical data data
Protocol layering and data ,[object Object],[object Object],[object Object],source destination message segment datagram frame application transport network link physical application transport network link physical M M M M H t H t H n H t H n H l M M M M H t H t H n H t H n H l
Encapsulating Data Transport Data Link Physical Network Upper Layer Data Upper Layer Data TCP Header Data IP Header Data LLC Header 0101110101001000010 Data MAC Header Presentation Application Session Segment Packet Bits Frame FCS FCS
De-encapsulating Data Upper Layer Data LLC Hdr + IP + TCP + Upper Layer Data MAC Header IP + TCP + Upper Layer Data LLC Header TCP+ Upper Layer Data IP Header Upper Layer Data TCP Header 0101110101001000010 Transport Data Link Physical Network Presentation Application Session
Internet structure: network of networks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],NBP A NBP B regional ISP regional ISP NAP NAP local ISP local ISP
Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Recommandé

Jaimin chp-1 - introduction - 2011 batch
Jaimin chp-1 - introduction - 2011 batchJaimin chp-1 - introduction - 2011 batch
Jaimin chp-1 - introduction - 2011 batchJaimin Jani
 
Ch1 2ed 29_dec03
Ch1 2ed 29_dec03Ch1 2ed 29_dec03
Ch1 2ed 29_dec03Sugan Nalla
 
Computer Network - Unit 1
Computer Network - Unit 1Computer Network - Unit 1
Computer Network - Unit 1Chandan Gupta Bhagat
 
Chapter 1 - Computer Networking a top-down Approach 7th
Chapter 1 - Computer Networking a top-down Approach 7thChapter 1 - Computer Networking a top-down Approach 7th
Chapter 1 - Computer Networking a top-down Approach 7thAndy Juan Sarango Veliz
 
Hcs Topic 4 Networks V2
Hcs Topic 4 Networks V2Hcs Topic 4 Networks V2
Hcs Topic 4 Networks V2ekul
 
Hcs Topic 4 Networks V2
Hcs Topic 4 Networks V2Hcs Topic 4 Networks V2
Hcs Topic 4 Networks V2Naruin
 
Chapter1
Chapter1Chapter1
Chapter1guest0af0cf
 
3rd edition chapter1
3rd edition chapter13rd edition chapter1
3rd edition chapter1nguyễn cầm
 

Recommandé

Jaimin chp-1 - introduction - 2011 batch
Jaimin chp-1 - introduction - 2011 batchJaimin chp-1 - introduction - 2011 batch
Jaimin chp-1 - introduction - 2011 batchJaimin Jani
 
Ch1 2ed 29_dec03
Ch1 2ed 29_dec03Ch1 2ed 29_dec03
Ch1 2ed 29_dec03Sugan Nalla
 
Computer Network - Unit 1
Computer Network - Unit 1Computer Network - Unit 1
Computer Network - Unit 1Chandan Gupta Bhagat
 
Chapter 1 - Computer Networking a top-down Approach 7th
Chapter 1 - Computer Networking a top-down Approach 7thChapter 1 - Computer Networking a top-down Approach 7th
Chapter 1 - Computer Networking a top-down Approach 7thAndy Juan Sarango Veliz
 
Hcs Topic 4 Networks V2
Hcs Topic 4 Networks V2Hcs Topic 4 Networks V2
Hcs Topic 4 Networks V2ekul
 
Hcs Topic 4 Networks V2
Hcs Topic 4 Networks V2Hcs Topic 4 Networks V2
Hcs Topic 4 Networks V2Naruin
 
Chapter1
Chapter1Chapter1
Chapter1guest0af0cf
 
3rd edition chapter1
3rd edition chapter13rd edition chapter1
3rd edition chapter1nguyễn cầm
 
Computer network basics
Computer network basicsComputer network basics
Computer network basicsJAI MCA-STUDENT
 
Study guide1(1)
Study guide1(1)Study guide1(1)
Study guide1(1)Tarik Eltaeib
 
Data communication and network Chapter - 2
Data communication and network Chapter - 2Data communication and network Chapter - 2
Data communication and network Chapter - 2Zafar Ayub
 
Networking Fundamentals
Networking FundamentalsNetworking Fundamentals
Networking Fundamentalswebhostingguy
 
Networking Basics
Networking BasicsNetworking Basics
Networking BasicsR G Mani
 
Networkingconcepts
NetworkingconceptsNetworkingconcepts
Networkingconceptsvasanthimuniasamy
 
Computer Network, Internet, Computer Security and Cyber Ethics
Computer Network, Internet, Computer Security and Cyber EthicsComputer Network, Internet, Computer Security and Cyber Ethics
Computer Network, Internet, Computer Security and Cyber EthicsSubas Paudel
 
Types Of Networks
Types Of NetworksTypes Of Networks
Types Of Networksjia234
 
Computer networks
Computer networksComputer networks
Computer networksAlvaro Gomes
 
Digital data communications
Digital data communicationsDigital data communications
Digital data communicationsProf. Dr. K. Adisesha
 
Concept of networking
Concept of networkingConcept of networking
Concept of networkingsumit dimri
 
Computer network (Lecture 1)
Computer network (Lecture 1)Computer network (Lecture 1)
Computer network (Lecture 1)Vishwajit Nandi
 
Exploitation of Local Area Network Services
Exploitation of Local Area Network ServicesExploitation of Local Area Network Services
Exploitation of Local Area Network ServicesMohammed El Hedhly
 
Ch1 internet Networks
Ch1 internet NetworksCh1 internet Networks
Ch1 internet Networkscairo university
 
Unit 1 introduction to computer networks
Unit 1 introduction to computer networksUnit 1 introduction to computer networks
Unit 1 introduction to computer networkspavan kumar Thatikonda
 
Networking Brief Overview
Networking Brief OverviewNetworking Brief Overview
Networking Brief OverviewKristof De Brouwer
 
Computer Networks
Computer NetworksComputer Networks
Computer NetworksRaj vardhan
 
Networks classification
Networks classificationNetworks classification
Networks classificationMukesh Chinta
 
Computer network transmission channel & topology
Computer network transmission channel & topologyComputer network transmission channel & topology
Computer network transmission channel & topologySweta Kumari Barnwal
 
Peerto Peer Networks
Peerto Peer NetworksPeerto Peer Networks
Peerto Peer Networkssanjoysanyal
 
King in the kitchen2
King in the kitchen2King in the kitchen2
King in the kitchen2Cara Bufalino Burton
 
King in the kitchen1
King in the kitchen1King in the kitchen1
King in the kitchen1Cara Bufalino Burton
 

Contenu connexe

Tendances

Data communication and network Chapter - 2
Data communication and network Chapter - 2Data communication and network Chapter - 2
Data communication and network Chapter - 2Zafar Ayub
 
Networking Fundamentals
Networking FundamentalsNetworking Fundamentals
Networking Fundamentalswebhostingguy
 
Networking Basics
Networking BasicsNetworking Basics
Networking BasicsR G Mani
 
Computer Network, Internet, Computer Security and Cyber Ethics
Computer Network, Internet, Computer Security and Cyber EthicsComputer Network, Internet, Computer Security and Cyber Ethics
Computer Network, Internet, Computer Security and Cyber EthicsSubas Paudel
 
Types Of Networks
Types Of NetworksTypes Of Networks
Types Of Networksjia234
 
Concept of networking
Concept of networkingConcept of networking
Concept of networkingsumit dimri
 
Computer network (Lecture 1)
Computer network (Lecture 1)Computer network (Lecture 1)
Computer network (Lecture 1)Vishwajit Nandi
 
Exploitation of Local Area Network Services
Exploitation of Local Area Network ServicesExploitation of Local Area Network Services
Exploitation of Local Area Network ServicesMohammed El Hedhly
 
Unit 1 introduction to computer networks
Unit 1 introduction to computer networksUnit 1 introduction to computer networks
Unit 1 introduction to computer networkspavan kumar Thatikonda
 
Computer Networks
Computer NetworksComputer Networks
Computer NetworksRaj vardhan
 
Networks classification
Networks classificationNetworks classification
Networks classificationMukesh Chinta
 
Computer network transmission channel & topology
Computer network transmission channel & topologyComputer network transmission channel & topology
Computer network transmission channel & topologySweta Kumari Barnwal
 
Peerto Peer Networks
Peerto Peer NetworksPeerto Peer Networks
Peerto Peer Networkssanjoysanyal
 

Tendances (20)

Computer network basics
Computer network basicsComputer network basics
Computer network basics
 
Study guide1(1)
Study guide1(1)Study guide1(1)
Study guide1(1)
 
Data communication and network Chapter - 2
Data communication and network Chapter - 2Data communication and network Chapter - 2
Data communication and network Chapter - 2
 
Networking Fundamentals
Networking FundamentalsNetworking Fundamentals
Networking Fundamentals
 
Networking Basics
Networking BasicsNetworking Basics
Networking Basics
 
Networkingconcepts
NetworkingconceptsNetworkingconcepts
Networkingconcepts
 
Computer Network, Internet, Computer Security and Cyber Ethics
Computer Network, Internet, Computer Security and Cyber EthicsComputer Network, Internet, Computer Security and Cyber Ethics
Computer Network, Internet, Computer Security and Cyber Ethics
 
Types Of Networks
Types Of NetworksTypes Of Networks
Types Of Networks
 
Computer networks
Computer networksComputer networks
Computer networks
 
Digital data communications
Digital data communicationsDigital data communications
Digital data communications
 
Concept of networking
Concept of networkingConcept of networking
Concept of networking
 
Computer network (Lecture 1)
Computer network (Lecture 1)Computer network (Lecture 1)
Computer network (Lecture 1)
 
Exploitation of Local Area Network Services
Exploitation of Local Area Network ServicesExploitation of Local Area Network Services
Exploitation of Local Area Network Services
 
Ch1 internet Networks
Ch1 internet NetworksCh1 internet Networks
Ch1 internet Networks
 
Unit 1 introduction to computer networks
Unit 1 introduction to computer networksUnit 1 introduction to computer networks
Unit 1 introduction to computer networks
 
Networking Brief Overview
Networking Brief OverviewNetworking Brief Overview
Networking Brief Overview
 
Computer Networks
Computer NetworksComputer Networks
Computer Networks
 
Networks classification
Networks classificationNetworks classification
Networks classification
 
Computer network transmission channel & topology
Computer network transmission channel & topologyComputer network transmission channel & topology
Computer network transmission channel & topology
 
Peerto Peer Networks
Peerto Peer NetworksPeerto Peer Networks
Peerto Peer Networks
 

En vedette

Uluslararası Kütüphane ve Bilgibilim Felsefesi Sempozyumu
Uluslararası Kütüphane ve Bilgibilim Felsefesi SempozyumuUluslararası Kütüphane ve Bilgibilim Felsefesi Sempozyumu
Uluslararası Kütüphane ve Bilgibilim Felsefesi SempozyumuGüleda Doğan
 
รับวาดภาพการ์ตูนล้อ ราคาพิเศษ ส่ง
รับวาดภาพการ์ตูนล้อ ราคาพิเศษ ส่งรับวาดภาพการ์ตูนล้อ ราคาพิเศษ ส่ง
รับวาดภาพการ์ตูนล้อ ราคาพิเศษ ส่งmoregallery
 
Presentatie Augmented Reality nspiratiedag[1]
Presentatie Augmented Reality nspiratiedag[1]Presentatie Augmented Reality nspiratiedag[1]
Presentatie Augmented Reality nspiratiedag[1]Yvette van den Bersselaar
 

En vedette (9)

King in the kitchen2
King in the kitchen2King in the kitchen2
King in the kitchen2
 
King in the kitchen1
King in the kitchen1King in the kitchen1
King in the kitchen1
 
Insertar
InsertarInsertar
Insertar
 
Authier revuz 2
Authier revuz 2Authier revuz 2
Authier revuz 2
 
Uluslararası Kütüphane ve Bilgibilim Felsefesi Sempozyumu
Uluslararası Kütüphane ve Bilgibilim Felsefesi SempozyumuUluslararası Kütüphane ve Bilgibilim Felsefesi Sempozyumu
Uluslararası Kütüphane ve Bilgibilim Felsefesi Sempozyumu
 
รับวาดภาพการ์ตูนล้อ ราคาพิเศษ ส่ง
รับวาดภาพการ์ตูนล้อ ราคาพิเศษ ส่งรับวาดภาพการ์ตูนล้อ ราคาพิเศษ ส่ง
รับวาดภาพการ์ตูนล้อ ราคาพิเศษ ส่ง
 
Cicso Lab
Cicso LabCicso Lab
Cicso Lab
 
Week2.1
Week2.1Week2.1
Week2.1
 
Presentatie Augmented Reality nspiratiedag[1]
Presentatie Augmented Reality nspiratiedag[1]Presentatie Augmented Reality nspiratiedag[1]
Presentatie Augmented Reality nspiratiedag[1]
 

Similaire à 1st Talk

Lec 4 and_5
Lec 4 and_5Lec 4 and_5
Lec 4 and_5hz3012
 
Sept 2017 introduction
Sept 2017 introductionSept 2017 introduction
Sept 2017 introductionshahin raj
 
Data & comp. communication
Data & comp. communicationData & comp. communication
Data & comp. communicationAshwin Namewar
 
Chapter 3 networking and internetworking
Chapter 3 networking and internetworkingChapter 3 networking and internetworking
Chapter 3 networking and internetworkingAbDul ThaYyal
 
Network ppt
Network pptNetwork ppt
Network ppthlalu861
 
Chapter7 Computer Networks
Chapter7 Computer NetworksChapter7 Computer Networks
Chapter7 Computer NetworksMuhammad Waqas
 
Lec 2 and_3
Lec 2 and_3Lec 2 and_3
Lec 2 and_3hz3012
 
Lec-01 Introduction Computer Networks...
Lec-01 Introduction Computer Networks...Lec-01 Introduction Computer Networks...
Lec-01 Introduction Computer Networks...bismahmalik22
 
ComputerNetwork_Introductions_C1_en.pptx
ComputerNetwork_Introductions_C1_en.pptxComputerNetwork_Introductions_C1_en.pptx
ComputerNetwork_Introductions_C1_en.pptxhuypmg22git
 
Rajesh basics of networking and routing
Rajesh basics of networking and routingRajesh basics of networking and routing
Rajesh basics of networking and routingr123027
 
Osi model with neworking overview
Osi model with neworking overviewOsi model with neworking overview
Osi model with neworking overviewSripati Mahapatra
 
Osimodelwithneworkingoverview 150618094119-lva1-app6892
Osimodelwithneworkingoverview 150618094119-lva1-app6892Osimodelwithneworkingoverview 150618094119-lva1-app6892
Osimodelwithneworkingoverview 150618094119-lva1-app6892Aswini Badatya
 
Osimodelwithneworkingoverview 150618094119-lva1-app6892
Osimodelwithneworkingoverview 150618094119-lva1-app6892Osimodelwithneworkingoverview 150618094119-lva1-app6892
Osimodelwithneworkingoverview 150618094119-lva1-app6892Saumendra Pradhan
 
Networking Technologies Basic's complete notes
Networking Technologies Basic's complete notesNetworking Technologies Basic's complete notes
Networking Technologies Basic's complete notesIndrajaMeghavathula
 

Similaire à 1st Talk (20)

Lec 4 and_5
Lec 4 and_5Lec 4 and_5
Lec 4 and_5
 
Networking (2)
Networking (2)Networking (2)
Networking (2)
 
Sept 2017 introduction
Sept 2017 introductionSept 2017 introduction
Sept 2017 introduction
 
Week1 lec2-bscs1
Week1 lec2-bscs1Week1 lec2-bscs1
Week1 lec2-bscs1
 
Data & comp. communication
Data & comp. communicationData & comp. communication
Data & comp. communication
 
Lecture 12
Lecture 12Lecture 12
Lecture 12
 
Chapter 3 networking and internetworking
Chapter 3 networking and internetworkingChapter 3 networking and internetworking
Chapter 3 networking and internetworking
 
Network ppt
Network pptNetwork ppt
Network ppt
 
Tcp ip
Tcp ipTcp ip
Tcp ip
 
Lecture No. 1.ppt
Lecture No. 1.pptLecture No. 1.ppt
Lecture No. 1.ppt
 
Chapter7 Computer Networks
Chapter7 Computer NetworksChapter7 Computer Networks
Chapter7 Computer Networks
 
Lec 2 and_3
Lec 2 and_3Lec 2 and_3
Lec 2 and_3
 
Lec-01 Introduction Computer Networks...
Lec-01 Introduction Computer Networks...Lec-01 Introduction Computer Networks...
Lec-01 Introduction Computer Networks...
 
ComputerNetwork_Introductions_C1_en.pptx
ComputerNetwork_Introductions_C1_en.pptxComputerNetwork_Introductions_C1_en.pptx
ComputerNetwork_Introductions_C1_en.pptx
 
Rajesh basics of networking and routing
Rajesh basics of networking and routingRajesh basics of networking and routing
Rajesh basics of networking and routing
 
Osi model with neworking overview
Osi model with neworking overviewOsi model with neworking overview
Osi model with neworking overview
 
Osimodelwithneworkingoverview 150618094119-lva1-app6892
Osimodelwithneworkingoverview 150618094119-lva1-app6892Osimodelwithneworkingoverview 150618094119-lva1-app6892
Osimodelwithneworkingoverview 150618094119-lva1-app6892
 
Osimodelwithneworkingoverview 150618094119-lva1-app6892
Osimodelwithneworkingoverview 150618094119-lva1-app6892Osimodelwithneworkingoverview 150618094119-lva1-app6892
Osimodelwithneworkingoverview 150618094119-lva1-app6892
 
Networking Technologies Basic's complete notes
Networking Technologies Basic's complete notesNetworking Technologies Basic's complete notes
Networking Technologies Basic's complete notes
 
Fg c
Fg cFg c
Fg c
 

1st Talk

  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12. Physical & Logical Topology
  • 13.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21.
  • 22.
  • 23.
  • 24.
  • 25.
  • 26.
  • 27.
  • 28.
  • 29.
  • 30.
  • 31.
  • 32.
  • 33. Circuit Switching: FDMA =WDMA and TDMA FDMA frequency time TDMA frequency time 4 users Example:
  • 34.
  • 35.
  • 36.
  • 37.
  • 38.
  • 39.
  • 40.
  • 41.
  • 42.
  • 43.
  • 45.
  • 46.
  • 47.
  • 48.
  • 49.
  • 50.
  • 51.
  • 52.
  • 53.
  • 54.
  • 55.
  • 56.
  • 57.
  • 58.
  • 59.
  • 60.
  • 61. Distributed implementation of layer functionality ticket (purchase) baggage (check) gates (load) runway takeoff airplane routing ticket (complain) baggage (claim) gates (unload) runway landing airplane routing Departing airport arriving airport intermediate air traffic sites airplane routing airplane routing airplane routing
  • 62.
  • 64.
  • 65.
  • 67.
  • 68.
  • 69.
  • 70. Layering: physical communication application transport network link physical application transport network link physical application transport network link physical application transport network link physical network link physical data data
  • 71.
  • 72. Encapsulating Data Transport Data Link Physical Network Upper Layer Data Upper Layer Data TCP Header Data IP Header Data LLC Header 0101110101001000010 Data MAC Header Presentation Application Session Segment Packet Bits Frame FCS FCS
  • 73. De-encapsulating Data Upper Layer Data LLC Hdr + IP + TCP + Upper Layer Data MAC Header IP + TCP + Upper Layer Data LLC Header TCP+ Upper Layer Data IP Header Upper Layer Data TCP Header 0101110101001000010 Transport Data Link Physical Network Presentation Application Session
  • 74.
  • 75.

Notes de l'éditeur

  1. Tree: is mixture of STAR MESH: is mixture of all types of basic network – RING, STAR, BUS…..
  2. Two simple multiple access control techniques. Each mobile’s share of the bandwidth is divided into portions for the uplink and the downlink. Also, possibly, out of band signaling. As we will see, used in AMPS, GSM, IS-54/136