1. KNOM Tutorial 2000 Integrated Management of Access Network Dec. 2000 Ho Chang changho@telecom.samsung.co.kr Samsung Electronics

2. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 2 Contents What is Access Network Evolution of Access Network - Voice & Data Over Voice Evolution of Access Network - Voice Over Data Managing Converged Voice/Data Network Conclusion

3. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 3 What is Access Network In telephony, an Access Network is the wired connection from a telephone company's central office in a locality to its customers' telephones at homes and businesses. This connection is usually on a pair of copper wires called twisted pair. The system was originally designed for voice transmission only using analog transmission technology on a single voice channel. Today, your computer's modem makes the conversion between analog signals and digital signals. With Integrated Services Digital Network or Digital Subscriber Line, the local loop can carry digital signals directly and at a much higher bandwidth than they do for voice only.

4. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 4 Service Perspectives - 1 Voice Data over Voice Data Voice over Data

5. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 5 Service Perspectives - 2

6. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 6 Network Perspectives - 1 Subscriber Loop(Local Loop) 1G DLC –Digital Loop Carrier –Copper Line 2G DLC –Voice(UDLC/IDLC) –Optical Line

7. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 7 Network Perspectives - 2 3G DLC –Voice + Data –Optical Line with Broadband Data Access Networks: –DSLAM –HFC –Cable TV –B&A

8. KNOM Tutorial 2000 Evolution of Access Network Voice & Data Over Voice

9. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 9 Subscriber Loop Local Exchange PSTN Local Exchange IP NAS Central Office Central Office Customer Premise Customer Premise Simply twisted-pair cooper lines from CO to Subscribers

10. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 10 Central Office Central Office Customer Premise Customer Premise 1G DLC Network Local Exchange PSTN Local Exchange IP N-NAS DLC Curb Area Curb Area

11. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 11 DS0 1G DLC Equipments Central Office 1G DLC Remote 1G DLC Phone Fax Dial-Up Modem Channelized E1 or DS3 Local Exchange Multiplexed Cooper Lines from CO to CP Channelized E1 or DS3

12. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 12 Central Office Central Office Customer Premise Customer Premise Curb Area Curb Area 2G DLC Network - UDLC Local Exchange PSTN Local Exchange IP N-NAS DLC

13. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 13 2G DLC Equipments - UDLC DS0 Central Office 2G DLC Remote 2G DLC Phone Fax Dial-Up Modem Channelized STM-1 Local Exchange TDM Optical Lines from CO to CP Twisted pair cooper lines between CO DLC and LE FLC-A or FLC-B

14. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 14 Central Office Central Office Customer Premise Customer Premise Curb Area Curb Area 2G DLC Network - IDLC Local Exchange PSTN Local Exchange IP N-NAS DLC

15. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 15 Channelized E1 2G DLC Equipments - IDLC DS0 Central Office 2G DLC Remote 2G DLC Phone Fax Dial-Up Modem Channelized STM-1 Local Exchange Channelized E1 Channelized E1 TDM Optical Lines from CO to CP E1 lines between CO DLC and LE FLC-D

16. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 16 Central Office Central Office Customer Premise Customer Premise Curb Area Curb Area 3G DLC Network ATMATM IP B-NAS Local Exchange PSTN Local Exchange DLC

17. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 17 Channelized E1 3G DLC Equipments Central Office 3G DLC Remote 3G DLC Phone Fax Dial Modem PC ATM Based STM-1/4/16 Local Exchange Channelized E1 Channelized E1 DS0 CPE PC ATM Based Optical Lines from CO to CP Directly Transport Data Traffic FLC-C(Samsung), PathStar(Lucent), MSAN(Alcatel)

18. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 18 Central Office Central Office Customer Premise Customer Premise DSLAM Network ATMATM IP B-NAS Local Exchange PSTN Local Exchange DSLAM CPE

19. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 19 DS0 DSLAM Equipments Central Office DSLAM Phone Fax Dial Modem PC Local Exchange DS0 CPE PC Transport High-Speed Data over Existing twisted-pair lines as well as Voice DS0 Twisted-Pair Between DSLAM and LE AceLink(Samsung), Stinger(Lucent), IMAS(Promatory)

20. KNOM Tutorial 2000 Evolution of Access Network Voice Over Data

21. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 21 Voice over Data Voice Over Packet to PSTN –VeDSL(Voice Enabled DSL) –VoDSL Gateway PSTN to Packet Network –Access Media Gateway –Trunk Media Gateway

22. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 22 VeDSL - 1 POTS 512 kbps upstream 1536 kbps downstream Hz... PCM voice channel (64Kbps) Voice Enabled DSL Use one of ADSL Channels as Voice Channel

23. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 23 Central Office Central Office Customer Premise Customer Premise VeDSL - 2 Local Exchange PSTN Local Exchange DSLAM CPE Transport Voice PCM Signal itself IDLC is normally implemented in DSLAM

24. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 24 Central Office Central Office Customer Premise Customer Premise VoDSL Gateway Local Exchange PSTN Local Exchange DSLAM CPE VoDSL Gateway VoDSL Gateway Transport Packetized Voice Signal over ATM IDLC is normally implemented in DSLAM

25. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 25 VeDSL vs. VoDSL AAL2 Echo Canceller ATM Compression Codec SLICADSL Phy VoDSL (Broadband Loop Emulation Service) VeDSL (Voice Enabled DSL) Codec SLICADSL Phy To DSLAM To DSLAM

26. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 26 Trunking Media Gateway PSTNPSTN SoftSwitch Trunking Gateway Long Distance, International DB MGCP/H.248 IP/ATM Trunking Gateway MGCP/H.248 Replace Class 4 Switches

27. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 27 Access Media Gateway AccessNetwork SoftSwitch Access Gateway DB MGCP/H.248 IP/ATM Access Gateway MGCP/H.248 AccessNetwork Replace Class 5 Switches

28. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 28 Where is the end ? PACKET Network (IP/ATM) Enterprise Network PSTN/ISDN Access Network PBX STP Mobile Network SS7 Network Network Management Center RADIUS Server GateKeeper ITSP/Enterprise Network Exchange 3rd party Call Feature Server MSC/BSC OSS RADIUS H.323 DB INAP SS7AP API POTS xDSL ISDN-BRA ISDN-PRA V5.2 MGCP/SIGTRAN/SIP SIP/SIGTRAN SS7AP Intelligent Peripherals UMSIVR SoftSwitch Element Management System POTS ISDN-BRA Internet or other Networks M.G Access Media Gateway Trunking Media Gateway Open API

29. KNOM Tutorial 2000 Managing Converged Access Network

30. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 30 Reduce Costs Changing Focus of Integrated Management System Mechanization 1975 Task Reduction Automation 1985 Task Elimination Flow-Through 1995 Time Reduction Service Differentiation 2005 Revenue Enhancement Reduce Costs Gain Advantage

31. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 31 Problems in Integrated Management System Nasty Problems –Grandma’s Chair –The Plug That Won’t Plug In –Too Many Boxes Recent Wows

32. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 32 Grandma’s Chair When Implementing a Management System, a Carrier Wants it To Work With the One(s) It Already Has

33. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 33 Grandma’s Chair in Access Network DS0 Central Office 1G DLC Remote 1G DLC Phone Fax Dial-Up Modem Channelized E1 or DS3 Local Exchange Channelized E1 Channelized E1 Channelized E1 Channelized STM-1 DS0 Remote 2G DLC Phone Fax Dial-Up Modem Central Office 2G DLC Local Exchange DS0 ATM Based STM-1/4/16 DS0 Remote 3G DLC Phone Fax Dial-Up Modem PC CPE Central Office 3G DLC

34. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 34 The Plug That Won’t Plug In “Make me a Management System that can plug into any vendor’s NE (today and tomorrow) and provide me the control and information I need. Also, plug together the other Management Systems.”

35. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 35 Too Many Boxes Need Many Management Systems for Small Networks Need Many Management Systems for Medium Networks Need Many Management Systems for Large Networks

36. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 36 Too Many Boxes in Access Network Too Central Office Customer Premise ATM IP B-NAS Local Exchange PSTN DSLAM CPE EMS for Vendor C DSLAM EMS for Vendor A DSLAM EMS for Vendor B DSLAM EMS for Vendor A B-NAS EMS for Vendor C B-NAS EMS for Vendor B B-NAS NMS for Vendor A NMS for Vendor B NMS for IP Network NMS for ATM Network NMS for Fault Management Service Management System for DSLAM

37. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 37 Recent Wows Management System Architecture for Converged Voice/Data Networks Large, Correct Databases - Coherent Data Architectures Flow-Through Provisioning of Complex Voice/Data Services Converged Network Surveillance

38. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 38 Converged Voice/Data Networks - 1 Local Exchange PSTN Local Exchange IP N-NAS Central Office Central Office Customer Premise Customer Premise NMS for Local Exchange

39. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 39 Converged Voice/Data Networks - 2 Central Office Central Office Customer Premise Customer Premise Curb Area Curb Area ATMATM IP B-NAS Local Exchange PSTN Local Exchange DLC Service Management System for Voice

40. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 40 What Should be Managed IADs or CPEs DLC Systems and DSLAM Systems NASs, Routers, and IP Switches ATM Switches VoP Gateways Soft Switches Interoperable Over Variety of Equipments and Vendors

41. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 41 How Can Interconnect OSI Protocols v.s. Internet Protocols OSI Protocols –Heavy Weight, Expensive and Poor Performance –Reliable and Secure Internet Protocols –Light Weight and Cheap –Unreliable, Less-Secure and Limited IP Address Resources Interconnect Variety of Equipments and Vendors

42. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 42 How to Inter-Operate TMN CMISE/CMIP SNMP V.1/2/3 CORBA WEB based Protocols Policy Based Management Protocols

43. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 43 Integration Over Management Layers Element Management Layer Network Management Layer Service Management Layer Flow Through Provisioning from Service Layer to Element Layer Correlate Inter-Layer Functionality

44. KNOM Tutorial 2000 Conclusion

45. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 45 Voice to Data Data over Voice to Voice over Data 64Kbps to 10’s Mbps, over 1000 times Bandwidth Convergence of Voice and Data

46. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 46 Nasty Problems in Access Network Too –Grandma’s Chair –Too Many Boxes –Too Many Protocols

47. KNOM Tutorial 2000 Copyright  2000 Samsung Electronics Co.,LTD 47 Recent Wows in Access Networks –Converged Voice/Data Network –Flow-Through Provisioning –Integrated Network Surveillance