1. Communication System Design2004/03/08 Linking City Networks Team 14 NG Linkers Linking City Networks Individual presentation

2. Communication System Design2004/03/08 Linking City Networks Team 14 NG Linkers Goals and benefits Nicolas Joly Individual presentation

3. GoalsBenefits Linking City Networks Team 14 NG Linkers -Goals Technical goals Business goals -Benefits Service providers Operators Network owners

4. Linking City Networks Team 14 NG Linkers Technical Goals - Finish to analyze technical characteristics of the networks - Focus on possible schemes to link the networks - Analyze current technical compatibility between various operator - Identify possibilities to distribute and manage local services (sharing between network local services) GoalsBenefits

5. Linking City Networks Team 14 NG Linkers Business Goals - Finish to analyze the present business model (ownership, cash flow). - Identify areas of conflict between stakeholders. - Propose business models and contracts. GoalsBenefits

6. Linking City Networks Team 14 NG Linkers Benefits - Service providers Increase customer base. Ability to peer traffic in the network. - Operators Larger customer base. More local services. - Network owners important factor in marketing new apartments. increase their chances in receiving proper payback for their networks GoalsBenefits

7. ? Questions … Linking City Networks Team 14 NG Linkers

8. Communication System Design2004/03/08 Linking City Networks Team 14 NG Linkers Current Status of Networks Li Wei Individual presentation

9. Current Status of Networks Linking City Networks Team 14 NG Linkers Major Players Involved Technical Features Technical Analysis Business Analysis

10. Linking City Networks Team 14 NG Linkers Place Network owners Communication Operators Service Providers (ISP) Vällingby TeliaSonera &totally 5 Sollentuna Sollentuna Hem Tele2, Tiscali totally 4 KistaIP 1 KTHKTH (non- profit) KistaIP 2 OpenNet BAHNHOF &totally 3 Akalla Husby Akalla Husby Network Major Players Involved

11. Linking City Networks Team 14 NG Linkers Place Technical FeaturesKey Equipment Vällingby Layer2&3; VLAN; Central router: Cisco 7600; switch: 3550 Sollentuna Layer2; VLAN; Local Service Central switch: Extreme 6808;APswitch:HP;3Com KistaIP 1 Layer2; VLAN;HP switch KistaIP 2 Layer2; VLAN?Cisco 6500 Akalla Husby Layer2; VLAN; Central node:ALCATEL 7800 AP switch:Alcatel 5022 Technical Features

12. Technical Analysis Linking City Networks Team 14 NG Linkers Benefits of VLANs : -Flexible Network Segment -Simple Management & Scalability -Secure Network Environment Our Idea: -Utilize TLS ( Transparent LAN Services ) technology to link these city networks

13. ? Questions … Linking City Networks Team 14 NG Linkers

14. Communication System Design2004/03/08 Linking City Networks Team 14 NG Linkers Business Analysis Daniel Johanisson Individual presentation

15. Linking City Networks Team 14 NG Linkers Business conditions summarized  Mutual interest  Case sensitive  Service providers will generate traffic  Time frame of approximately 5 years  Inevitable need for basic coordination  Keep overheads at a minimum  Neutrality is essential ConditionsCritical questionsDeal aspectsCash flowComments

16. ConditionsCritical questions Linking City Networks Team 14 NG Linkers Critical questions in a multi-operator network 1.How can a deal be made between different operators, with different services, without putting a new cost structure upon the operators? 2.What is the required critical mass (in terms of end- users) to support multiple operators and ISPs? Deal aspectsCash flowComments

17. Linking City Networks Team 14 NG Linkers Critical aspects in operator – provider deals  Prices  Maintenance, fault & surveillance handling  Description of responsibility  Description of the technical layout  Description of customer placed equipment  Service descriptions for the deal ConditionsCritical questionsDeal aspectsCash flowComments

18. Linking City Networks Team 14 NG Linkers Cash flow schemes – the basics Network Owner -> Operator Operator -> Service Provider -Connection fee per user and connection depending on service. -Monthly fee per user and service. -Example of another fee, depending on specific case, is an establishing fee for the ISP/Service. Service Provider -> Customer -Same as above plus margin and other fees. ConditionsCritical questionsDeal aspectsCash flowComments

19. Linking City Networks Team 14 NG Linkers Comments  Basic scheme too simplistic  Business models are different in respective networks  Risk and pricing ConditionsCritical questionsDeal aspectsCash flowComments

20. ? Questions … Linking City Networks Team 14 NG Linkers

21. Communication System Design2004/03/08 Linking City Networks Team 14 NG Linkers Scenarios and proposed solution Shikhar Singh Individual presentation

22. Scenario 1 Scenario 2 Linking City Networks Team 14 NG Linkers Important Factors - The availability of the links between the networks. - The willingness of the networks to co- operate. - The money factor. - The technical compatibility factor. SOLIXSolution

23. Linking City Networks Team 14 NG Linkers Scenario 1 Ring Topology All the networks connected to their neighbors forming a ring. Pros and Cons….. Easier and cheaper to implement. Not scalable and not optimal. Many more problems with business model Scenario 1 Scenario 2 SOLIXSolution

24. Linking City Networks Team 14 NG Linkers Scenario 2 STAR Topology The networks and the service providers connected to a central exchange point. Pros and Cons Optimal Solution. Very scalable. Easy to implement in the given networks. With SOLIX, the expenses are not high for implementation. Scenario 1 Scenario 2 SOLIXSolution

25. Linking City Networks Team 14 NG Linkers Introduction to Solix - SOLIX is a internet exchange operated partially by KTH. - Has a backbone which can form the central structure in STAR topology. - Is reliable and industry trusted. - Easy for technical solution implementation. - Is scalable. Scenario 1 Scenario 2 SOLIXSolution

26. Linking City Networks Team 14 NG Linkers Solution - Concentrate on STAR topology. - SOLIX is the center of exchange. - The concept of Virtual LANS will be utilized. - Kista IP and OpenNet networks to be connected as a test bed. - Future general solution depends heavily on the test bed. Scenario 1 Scenario 2 SOLIXSolution

27. ? Questions … Linking City Networks Team 14 NG Linkers

28. Communication System Design2004/03/08 Linking City Networks Team 14 NG Linkers Kista IP network Jie Chen Individual presentation

29. Kista IP 1Kista IP 2 Linking City Networks Team 14 NG Linkers Case Study - Kista IP Two Networks to be studied: Kista IP 1 Network owner – Svenska Bostäder Operator – KTH Kista IP 2 Network owner – Svenska Bostäder Operator - OpenNet Unfinished

30. Kista IP 1Kista IP 2 Linking City Networks Team 14 NG Linkers Kista IP 1  A private network including 144 student apartments in Kista Alléväg  Located next to the KTH university campus in Kista as well as many of the leading IT industries  Used as a test bed for new technology and services  Projects involved: IP-TV, IP-telephony, Open neutral networks, quality of service, triple play services, mobility, vlans, business models, private GSM/GPRS networks Unfinished

31. Kista IP 1Kista IP 2 Linking City Networks Team 14 NG Linkers Kista IP 1  Connected to the outside world via Kista IX, which has accessed to Solix  Connected to the KTH Kista Campus Network,  Connected to KTHLAN and Sunet on campus via the Green Network  Given free of charge for the tenants living at Kista IP, Commercial access to Internet will be made available from various operators in the future. Unfinished

32. Kista IP 1Kista IP 2 Linking City Networks Team 14 NG Linkers Kista IP 2  A commercial network connecting student apartments and other companies in Kista  Two intelligent multilayer modular switches Cisco catalyst 6505 and several Ethernet switches products of Extreme Network  3 ISPs providing service at the moment  Providing various local services, such as video and IP telephony Unfinished

33. Kista IP 1Kista IP 2 Linking City Networks Team 14 NG Linkers Unfinished  Detailed technical feature in Kista IP 2  Meeting with OpenNet and its position remains further investigation  Connecting these two network directly or through Solix  Technical compatibility and agreement  Business model to harmonize academic network with commercial management Unfinished

34. ? Questions … Linking City Networks Team 14 NG Linkers

35. Communication System Design2004/03/08 Linking City Networks Team 14 NG Linkers Future Work Tong liu Individual presentation

36. Linking City Networks Team 14 NG Linkers - Build a feasible business model for KistaIP I & KistaIP II - A general business model for linking networks - To propose the contracts and billing models with SOLIX as a part of the network. Business model for case study (Kista IP I / II)

37. Linking City Networks Team 14 NG Linkers - Implement the technical solution formulated for KistaIP I & Kista IPII. - To generalize the above mentioned technical solution for all the city networks. Technical solution for case study

38. Linking City Networks Team 14 NG Linkers - LABS2(contact) http://www.labs2.com - Packetfront(contact) http://www.packetfront.com - SSNF(The Swedish Urban Network Association ) http://www.ssnf.org OPENNet(difficult thing) http://www.opennet.se Meetings with …

39. Linking City Networks Team 14 NG Linkers - What kinds services can be provided via IP networks? - How do the different networks share one “local” service? Local service (2 questions)

40. Linking City Networks Team 14 NG Linkers - The Project Progress - Slides - Presentation Midterm presentation

41. ? Questions … Linking City Networks Team 14 NG Linkers

42. Thanks Questions … Linking City Networks Team 14 NG Linkers