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T-110.5140 Network Application Frameworks and XML Additional material: On networks 19.2.2007 Sasu Tarkoma.

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Presentation on theme: "T-110.5140 Network Application Frameworks and XML Additional material: On networks 19.2.2007 Sasu Tarkoma."— Presentation transcript:

1 T Network Application Frameworks and XML Additional material: On networks Sasu Tarkoma

2 FICIX FICIX (Finnish Communication and Internet Exchange - FICIX ry)
Started in 1993 Largest peering point in Finland Neutral entity Two Ethernet switches (Otaniemi,FICIX1), Pasila (FICIX2) Each operator provides physical connection to the two switches Only switches on data link layer (Ethernet)

3 FUNET Connects Finnish universities and institutes
Ethernet and dark fibre Connections to Finnish ISPs Peering in Finland with FICIX Nordunet outside Finland, 10 Gbit/s

4 Source:

5 Weathermap

6 Peering Peering is done using BGP on top of the switches Transit
Always between two ISPs Through physical connections Settlement free (FICIX) Exchange of routing information using BGP Public peering (shared switch) Private peering (point-to-point interconnection) Transit Costs money Agreements and settlements

7 Source: http://en.wikipedia.org/wiki/Image:AS-interconnection.png

8

9 Next We have been covering network layer routing
Naming, Addressing, Routing Naming and address resolution are critical Much needed indirection (typical solution in distributed computing) Distributed hash tables


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