lec2_final - Intro to Networking and Linux Programming...

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1 Intro to Networking and Linux  Programming Marco Gruteser
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The Client-Server Model 2 Client process Server process 1. Client sends request 2. Server  processes request 3. Server sends response 4. Client  processes response Resource
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Network Structures and Elements: A  Local Area Network 3 Host Host Host Hub 100 Mb/s 100 Mb/s Host Host Host LAN ...
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A Campus Network 4 Host Host Host Host Host Hub Hub Bridge 100 Mb/s 100 Mb/s Host Host Hub 100 Mb/s 100 Mb/s 1 Gb/s Host Host Host Bridge Host Host Hub A B C X Y
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A Small Internet 5 Host Host Host LAN ... Host Host Host LAN ... Router Router Router WAN WAN
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Naming and Addressing(DNS) 6 mil edu gov com cmu berkeley mit cs ece kittyhawk 128.2.194.242 cmcl unnamed root pdl imperial 128.2.189.40 amazon www 208.216.181.15 First-level domain names Second-level domain names Third-level domain names
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Network Transmission of Packets:  Encapsulation 7 Protocol software Client LAN1 adapter Host A Data Data PH FH1 Data PH Data PH FH2 LAN1 LAN2 Data Data PH FH1 Data PH FH2 (1) (2) (3) (4) (5) (6) (7) (8) internet packet LAN2 frame Protocol software LAN1 adapter LAN2 adapter Router FH1 LAN1 frame Data PH FH2 Protocol software Server LAN2 adapter Host B
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A First Internet Server 8
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