2 - nuts an bolts

2 - nuts an bolts - Last Lecture ! ! ! Administrative...

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SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 1 Last Lecture ! Administrative aspects ! A brief overview of the course ! Desired features of the Internet
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SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 2 This Lecture Nuts-and-bolts description of the Internet ! The topology ! The core ! The edge ! The communication links
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SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 3 A illustrative slice of the Internet
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The Core and the Edge Nodes ! The core: ! Interconnected ISPs’ networks of routers/switches ! The edge: ! Users’ nodes (i.e. end systems , hosts ) “tap” into the core via access networks SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 4
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SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 5 This Lecture Nuts-and-bolts description of the Internet ! The topology ! The core ! The edge ! The communication links
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SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 6 The Core: ISPs’ Networks are Interconnected
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Tier 1 ISPs’ Networks ! Also called Internet backbone networks ! Unofficially, the following are tier 1 ISPs ! Sprint ! Verizon business (acquired UUNet/(MCI) Worldcom) ! AT&T ! Level 3 ! Qwest ! NTT communications ! Global Crossing ! SAVVIS ! TeliaSonera ! Tata communications SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 7
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Sprint ’s North America IP Network SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 8
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NTT ’s Global IP Network SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 9
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SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 10
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The Internet’s Undersea World SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 11 http://www.youtube.com/watch?v=v1JEuzBkOD8
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Routers and POPs SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 12 A B C POP1 POP3 POP2 POP4 D E F POP5 POP6 POP7 POP8
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’s North America IP Network SUNY AT BUFFALO; CSE489/589 – MODERN NETWORKING CONCEPTS; Fall 2010; INSTRUCTOR: HUNG Q. NGO 13 to/from customers peering to/from backbone . POP: point-of-presence
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2 - nuts an bolts - Last Lecture ! ! ! Administrative...

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