07Sp_SECB408_01&51_P2 - UnderstandingNetworks...

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    Understanding Networks What is the Internet Layered Protocols UDP Protocol TCP/IP Protocol DNS Network Embedded Systems Network Topologies Network Traffic
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    What is the Internet
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    What is the Internet
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    What is the Internet
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      Internet Structure – network of networks
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    Tier 1 ISP
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      Internet Structure – network of networks
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      Internet Structure – network of networks
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      Internet Structure – network of networks
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    (Layered Protocols )OSI
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    (Layered Protocols )OSI
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    (Layered Protocols )IP
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    (Layered Protocols )IP
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    ?Why Layering
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    Universal Datagram Protocol  (UDP) Simple Transport Protocol. It is just an IP with  small modifications. Connectionless Not reliable No order guarantee of messages No flow control mechanisms Congested nodes may drop packets! Suited to DoS attacks!!!
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    Universal Datagram Protocol  (UDP) IP vs UDP
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    Universal Datagram Protocol  (UDP)
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    Universal Datagram Protocol  (UDP) IANA Ranges
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    Universal Datagram Protocol  (UDP) UDP Format
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    Universal Datagram Protocol  (UDP)
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    Universal Datagram Protocol  (UDP) Queues in UDP
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     Transmission Control Protocol ()TCP Connection-oriented (3-way hand-shake  protocol) transport protocol Reliable Duplicate packets have to be removed. Checksum values to guard against data  corruption. Order of messages guarantee Flow control mechanisms
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     Transmission Control Protocol ()TCP
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     Transmission Control Protocol ()TCP Three Way Handshake
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     Transmission Control Protocol ()TCP Four Way Handshake
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     Transmission Control Protocol ()TCP
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     Transmission Control Protocol ()TCP Stream Delivery
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     Transmission Control Protocol ()TCP Sending and Receiving Buffers
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     Transmission Control Protocol ()TCP In TCP, the sender window In TCP, the sender window
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This note was uploaded on 03/26/2010 for the course SECB 408 taught by Professor Wassimelhaj during the Spring '07 term at United Arab Emirates University.

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07Sp_SECB408_01&51_P2 - UnderstandingNetworks...

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