RelativeResourceManager1

RelativeResourceManager1 - CprE 530 Lecture 4 Dr Doug...

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CprE 530 Lecture 4 Dr Doug Jacobson Topics Client Server Routing
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Client Server Model Client A Application Server W1 Full name: server.dougj.net IP address: Listening Port: 80 Application Server W2 Client B Client C Application Server W3 Internet Client Server model Server 1 Server 2 TCP TCP Client 1 Client 2 open_socket () listen(Port A) fd = accept() open_socket () listen(Port B) fd = accept() open_socket() connect(IP, Port) open_socket() connect(IP, Port) IP = B Physical Network IP = A Physical Network Source IP = A Dest IP = B Source Port = Ephemeral Dest Port = A Source IP = B Dest IP = A Source Port = A Dest Port = Ephemeral
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Client Server Model Packets from client to server Source IP Client’s IP address Destination IP Server’s IP address Source Por Ephemeral por Source Port Ephemeral port Destination Port Server’s port number (often well known) Packets from server to client Source IP Server’s IP address Destination IP Client’s IP address Source Port Server’s port number (often well known)
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RelativeResourceManager1 - CprE 530 Lecture 4 Dr Doug...

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