MMT1-Lec7 - Computer Networks 1 (Mng My Tnh 1) Lectured by:...

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1 Computer Networks 1 (Mạng Máy Tính 1) Lectured by: Nguyễn Đức Thái
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2 Lecture 7: Network Layer in the Internet Reference : Chapter 5 - “ Computer Networks ”, Andrew S. Tanenbaum, 4th Edition, Prentice Hall, 2003.
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3 The Network Layer in the Internet The IP Protocol IP Addresses Internet Control Protocols OSPF – The Interior Gateway Routing Protocol BGP – The Exterior Gateway Routing Protocol IPv6
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4 Design Principles for Internet Make sure it works. Keep it simple. Make clear choices. Exploit modularity. Expect heterogeneity. Avoid static options and parameters. Look for a good design; it need not be perfect. Be strict when sending and tolerant when receiving. Think about scalability. Consider performance and cost.
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5 Collection of Subnetworks The Internet is an interconnected collection of many networks.
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6 The IP Protocol The IPv4 (Internet Protocol) header.
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7 The IP Header Version : version of the protocol used IHL : header length (number of 32-bit words) Type of service : combination of reliability and speed, commonly ignored by routers Total length : length of the datagram Identification : to identify a fragment within a datagram DF : don’t fragment, tell the routers not to fragment MF : more fragments Time-to-live : a time counter to limit the message lifetime Header checksum : of the header only Source and destination addresses : address of the source and destination of the datagram
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8 IP Options Some of the IP options.
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9 IP Addresses IP address formats.
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This note was uploaded on 11/25/2010 for the course INFORMATIO 506002 taught by Professor Nguyenducthai during the Winter '10 term at RMIT Vietnam.

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MMT1-Lec7 - Computer Networks 1 (Mng My Tnh 1) Lectured by:...

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