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The importance of SMC Service Management Center and Quality of Service for

The importance of SMC Service Management Center and Quality of Service for management of commercial networks. Actual Situation. Current Place of SMC in Narrowband WA Network (1/2). Corp LAN. ER. RAN. RAN. Individual users. ISP. SMC.

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The importance of SMC Service Management Center and Quality of Service for

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  1. The importance of SMC Service Management Center and Quality of Service for management of commercial networks

  2. Actual Situation

  3. Current Place of SMC in Narrowband WA Network (1/2) Corp LAN ER RAN RAN Individual users ISP SMC

  4. Current Place of SMC in Narrowband WA Network (2/2) Remote user ISP IAP SMC Proxy SMC RAN Corp LAN ER RAN RAN RAN Individual users PROXY

  5. Alcatel Narrowband Enhancement (1/2) SMC A1135 User authentification: name, password proxy supported User authorisation: access restrictions User accounting: billing time/volume/speed Cost & performance efficiency VPN based concentration Network adaptation Session handling SMC RAN (Remote) user

  6. Alcatels Narrowband Enhancement (2/2) DANA Broadband PPP/ATM RAN architecture ADSL BOOSTING the network: speed x 50 Using the POTS hard shoulder: Frequency modulation Simple Plug-and-Play (Light ADSL) Based on ATM Universal Single Standard

  7. Actual Problems

  8. Actual Narrowband Service configuration Applications Video conf. Crit. data Telephony Data Customers ISP 1 ISP n Corp 1 Corp n Service Level Standard Bronze Silver Gold 256 - 384 Kb 768Kb - 1.5 MB 256 - 384 Kb 768Kb - 1.5 MB 256 - 384 Kb 768Kb - 1.5 MB 256 - 384 Kb 768Kb - 1.5 MB

  9. Actual Narrowband Problems Direct Client-PABX link: 100% reservated but...<<100% use PSTN 64Kps available limit, Mps need: overload Hugh cost/performance ratio Protocol conversions, large overhead Merely no differentiated customer groups, no differentiated services no differentiated billing POTS: Plain Old Telephone Service

  10. New Trends

  11. 1997: Evolution of Wide Area Networks Frame Relay/ATM Leased Line Public ISP Time evolution Virtual network

  12. Key Trends Historical future • Traffic patterns: predictable chaotic • WAN boundaries:separate integrated • mission critical: separate integrated • data volume: defined exponential • requirement: data information

  13. Key Necessities • increased bandwith • extended reach • enhanced ‘smart’ applications • controlled behavior

  14. New Evolutions

  15. 1. Development of WAN access is more customer satisfaction orientated

  16. Customer Satisfactory of WAN: actual requirements

  17. Customer Satisfactory WAN: actual requirements

  18. 2. Integration of legacy networks

  19. Actual separated Users SAP, BAAN Database Surfing

  20. Future mixed (?) Users SAP, BAAN Database Surfing $ @ New apps impact mission-critical apps

  21. 3. Bandwith policies

  22. Bandwith policy by creating application profiles Based on Packet loss round trip delay troughput packet jitter one-way delay reachability networdk service availability duration of outage lenght of outages Source: Framework for metrics for SLA

  23. Internet surfing application profile

  24. SAP application profile

  25. Banking application profiles

  26. Applicability of VPN’s Applications Video conf. Crit. data Telephony Data Customers ISP 1 ISP n Corp 1 Corp n Service Level Standard Bronze Silver Gold Every cube will be a VPN

  27. Applicability of VPN: policy enabled net Is this user authorized to run this application? What level of performance is needed to do the job? What priority should this application/user receive?

  28. 4. L2 versus L3 solutions

  29. 1. Switching <> Routing: advantages and disadvantages. Is the world willing to adapt : Benefits > development cost and investments ? Is the world able to adapt: Backbone support ? 2. IP and ATM:

  30. IP over ATM IP packet Packet switching => no quality control Cell switching: Priority indication ATM

  31. Actual Discussion Quality-driven Bandwith-driven Connection oriented switching Connectionless routing Semi-Connection oriented routing

  32. Actual Challenges

  33. Actual Challenges 1. Integration of legacy networks, creation of Intelligent Global Infonet Switched circuit networks ATM/BB/SCL/IP Network Gateway Gateway IP Networks

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