1 / 90

EuroDocsis Introduction

EuroDocsis Introduction. A short course about the introduction of EuroDocsis 1.1. Why this course?. EuroDocsis 1.1 is new A lot of previous systems exist in Casema e.g. Demos, DVB, COM21

banyan
Télécharger la présentation

EuroDocsis Introduction

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EuroDocsisIntroduction A short course about theintroduction of EuroDocsis 1.1

  2. Why this course? • EuroDocsis 1.1 is new • A lot of previous systems exist in Casemae.g. Demos, DVB, COM21 • A lot of related subjects such asTPA, SI, SP, different OSIHN, EMC, LVDAAA, QoSbut what does it mean?(even if you know them all, this presentation may be interesting for you)

  3. Agenda for today • EuroDocsis introduction • planning, • some features, • COM21, DVB, Docsis, EuroDocsis comparison • System Issues • NGP, implementation of other market areas, • system calculations (capacity, line price), • linking to the PC • Implementation issues • Suppliers comparison, • Self installation and provisioning

  4. Our goals • Roll out without major surprises. • Broad knowledge about EuroDocsis 1.1(not only technical possibilities and blockings, also the market related ones must be known) • Low line price (what the hell is line price!)(everybody knows its importance, nobody uses it,somebody calculated it, anybody does it his way) • Get a modem system that is cheaper and more flexible than COM21's system today

  5. 1-10-100 rule RFQ phase Trial and test phase Business phase good questions understanding - the subject - the supplier right choice change cost some days what must be testwhat are the criteria understanding - the need for the test - the test results - the consequences right choice change cost a few man-weeks reliability, availability serviceability upgradeability installability understanding changing cost a lot more

  6. Issues that are (partly) not covered • Regulatory issuesIf it is mandatory, only the board can and must decide since the president (and his MT) is mostly personally responsible.Examples: • LT Legal Tapping, government must be able to tap • EMC Radiation & interfering other systems like air traffic • LDV Low-Voltage Directive, Safety due to mains voltage • IHN Configurations and responsibility (only TPA aspects)basis for seminar is: Cable operator is not responsible for IHN AOP + NTU + modem together, no usage of existing IHN for interactive traffic, Ethernet from modem to the PC SI = Self installation

  7. Development of Euro-DOCSIS in Time Cursus voor niet-technici 3 mei 2002

  8. CableLabs • In 1988, CableLabs was founded in the USA • CableLabs serves the cable television industry by: • researching and identifying new broadband technologies; • authoring specifications, certifying products and spreading information. • CableLabs benefits the cable television industry and consumers by: • enabling interoperability among different cable systems; • facilitating retail availability of cable modems and advanced services; and helping cable operators deploy innovative broadband technologies

  9. DOCSIS summary Website: www.cablelabs.com

  10. DOCSIS summary Version Spec PICS/ATP 1st Certif. CMs CMTSs Market 1.0 '97 '98 '99 203 26 Roll out 1.1 '99 00Q3 01Q3 22 6 Roll out CCCM '00 01Q2 02Q3 0 0 Waiting 2.0 01Q4 t.b.d. t.b.d. 0 0 Waiting CCCM = CPE controlled CM, t.b.d.= to be defined 1.0 1.1 CCCM 2.0 1997 1998 1999 2000 2001 2002 2003

  11. History of Euro-DOCSIS • In October 1999, TOCOF was founded and selected Ghent University to establish and conduct Euro-DOCSIS interoperability and certification program • In February 2000, Euro-DOCSIS annex N is approved • In May 2000, tComLabs at Ghent and Euro-DOCSIS Certification Board (ECB) were founded • In June 2000, first certification wave for Euro-DOCSIS 1.0 products by tComLabs

  12. EuroDOCSIS summary Website: www.tcomlabs.com

  13. EuroDOCSIS summary Version Spec PICS/ATP 1st Certif. CMs CMTSs Market 1.0 00Q1 00Q2 00Q3 28 16 Roll out 1.1 01Q3 01Q3 01Q4 0 0 Delayed 2.0 ??? ??? ??? 0 0 Waiting ED1.0 ED1.1 2000 2001 2002 2003 ED1.0 ED1.1 roll out RFQ NGP Selection TPA

  14. Euro-Docsis Technische inleiding

  15. DOCSIS • Data • Over • Cable • Services • Interface • Specifications

  16. DOCSIS • Amerikaanse standaard • Gestandaardiseerde apparatuur • CM ( kabelmodem) en CMTS (netwerkapparatuur) mogen van een verschillende fabrikant zijn

  17. EuroDOCSIS • Europese versie van DOCSIS • Aanpassingen aan Europese kabelnetten • Kanaalbandbreedte • Upstream frequency range • Downstream frequency range

  18. Reference Model Compleet Operations Support System Cable Modem CPE Interface O/E Node CMTS RF interface O/E Node SNMPV3 Mod TX Backbone Transport Adapter O/E Node Network Termination Cable modem CPE RX Dem Cable modem Termination system Cable Modem RF Interface CMTS-NSI NSI = Network-Side interface

  19. Operations Support System • DHCP(Dynamic Host Configuration Protocol) server • Time of Day Server • TFTP(Trivial File Transfer Protocol) server

  20. DHCP • De DHCP server zorgt voor: • Het IP adres van het Modem • Het IP adres van de Time of day server • Het IP adres van de TFTP server • Naam van de Config file • DCHP lease: tijd dat IP adres aan het modem is toegekend

  21. Time of day Server • Zorgt voor: • de tijdsindicatie • samen met offset wordt dat de juiste lokale tijd

  22. TFTP • De TFTP server zorgt voor: • Config file • Netwerk toegang configuratie setting • Class of Service configuratie setting • Quality of Service configuratie setting • Baseline Privacy configuratie setting

  23. TPA • Toegang via derde partijen • Modem maakt verbinding met Casema • CPE (PC) maakt verbinding met ISP • Twee afzonderlijke procedures • CPE(PC) heeft IP adres • Modem heeft IP adres

  24. Baseline Privacy • Bied een zeker niveau van versleuteling • Authenticiteit van CM en CTMS • Docsis 1.0 BPI Niet voor CM • Docsis 1.1 BPI Voor CM via digitale handtekening • Zorgt dat CM alleen toegang heeft tot diensten waarvoor het is geautoriseerd • Docsis 1.0 via MAC adres

  25. Baseline Privacy • Zorgt dat CM alleen toegang heeft tot diensten waarvoor het is geautoriseerd • Docsis 1.0 via MAC adres • Docsis 1.1 via MAC adres en Digitale handtekening.

  26. Downstream CM CM CM CMTS CM CMTS- Cable Modem Termination System CM CM CM-Cable Modem

  27. Downstream • Frequency gebied:108-862 MHz • Bandbreedte: 8MHz/ eff 7,96 MHz • QAM 64 (QAM 256) • MPEG-2 datastream • Bruto Bitsnelheid: 42 Mbit/s tot 56 Mbit/s

  28. Upstream CM CM CM CMTS CM CMTS- Cable Modem Termination System Instraling CM CM CPE IHN

  29. Upstream • Freqency range: 5 MHz-65 MHz • Bandbreedte : 0.2 ;0.4 ;0.8 ;1.6 of 3.2 Mhz • QPSK of 16 QAM • Bitsnelheid: 0,128 …10,24 Mb/s

  30. Wat is maximaal mogelijk ? Bit/Hz 9 256QAM 8 7 Shannon limit 6 128QAM 64QAM 5 4 Maximale Signaal/ruis CATV netwerk 3 2 32 dB 1 10 20 CNR [dB]

  31. CNR zichtbaar gemaakt Grote CNR Kleine CNR

  32. (Euro)Docsisto DVB/COM21 issues A short course about the differences between DVB COM21 and (Euro-)DOCSIS

  33. DVB, COM21, (Euro)Docsis DVB From 1995 A/V + IP (+ tel.) Origin: Europe EBU Multimedia standard IP development failed due to weak CNP support EuroDocsis From 2000 IP + tel. only Origin: Europe tComLabs IP oriented standard Video streaming development due to lack of CNP pushing EBU COM21 From 1996 IP only (+ tel.) Origin: USA COM21 IP oriented proprietary One vendor only due to that, too expensive Docsis From 1997 IP + tel. only Origin: USA CableLabs IP oriented standard Video streaming development due to lack of broadcast vision

  34. DVB versus Docsis DVB +CM easily to link with STB +Real multimedia vision, DVB for all +IPCableCom, later adopted for time- critical services. +Developed for world market from European vision. Can be used in either 8 (PAL,SECAM) or 6 MHz (NTSC) systems. -8 US channels per DS +OOB and IB possible +QoS from the beginning.Important in Europe DOCSIS - STB link originally not foreseen. - No multimedia vision, DVB + ED mix +IPCableCom, later adopted for time- critical services. - Developed in USA, for USA. DOCSIS is not suitable for other regions, it declares the EuroDOCSIS version. +4 to 8 channels per DS (vendor dep.) - Only IB possible. - QoS was not in DOCSIS1.0 CoS only. In USA less interest. The many pro's for DVB shows the technical superiority for the European market but the market decided differently. DVB and EuroDocsis will be used simultanuously OOB = Out of Band, separate control downstream based on QPSK 2 Mb/sIB = In Band, control signals in main downstream band multimedia = satellite, cable, terrestrial

  35. COM21 versus Euro(Docsis) COM21 - Proprietary, monopoly position +Mature proven technology - Downstream 6 MHz, NTSC oriented, 27 Mb/s in 8 MHz - Upstream 1,7 MHz QPSK only -Bridged CMTS based VLAN tagging - Tel: very expensive propriatary + Internet: QoS and billing, - PPPoE like virtual IP encapsulation (proprietary) - Too transparent for ISP (CNP problem) - iTV: no iTV but video streaming Europe (EuroDOCSIS) + Interoperable between many vendors - Step into the dark but it will work finally + Downstream 8 MHz, PAL oriented, 38 Mb/s in 8 MHz - Upstream 1,7 MHz QPSK only +Routed CMTS (can be used as bridged) + Tel: ETSI-POTS, ISDN, VoIP + Internet: QoS and billing (if ED1.1_ + MPLS, VPNbut Cisco dominated up to now - Better TPA, standard + iTV: over Ethernet/ EuroDOCSIS There are good reasons to step from COM21 to EuroDocsis 1.1

  36. EuroDocsis versus Docsis part 1 EuroDOCSIS (ES 201 488 Anx.N) +ITU region 1 oriented ("Old World plan")US 5...65 MHzDS 87,5...862 MHz, PAL oriented grid +European Directive for EMC (EMCD) +European Directive for safety (LVD) +Commitment to Cenelec EN 500 83with higher reflection requirements +Under European supervision for e.g. interoperability via tComLabs. Influenced by Eur. CNP's (e.g. ISDN) +Eur. Cablecom solutions for telephony + Networks: (mini-) star based, buried USA DOCSIS (ETSI ES 201 488) - ITU region 2 oriented ("New World plan")US 5...42 MHzDS 54...750 MHz, NTSC oriented grid - FCC commitment for EMC, safety - USA LV safety based on 110 V - Commitment to US local standardse.g. low reflection requirements - Under US supervision for e.g. interoperability via CableLabs. Cannot be influenced by Eur. CNP's. - US Cablecom solutions for telephony - Network: tree & branch, aboveground Docsis shows a year in advance what we can expect from EuroDocsis

  37. EuroDocsis versus Docsis part 2 USA DOCSIS + Node size now 300...200 later 100...200 due to interactivity - Drop lines to IHN + Home-RF is defacto standard, very USB oriented - DS 6 MHz NTSC based, gives 25% lower efficiency in 8 MHz (27 Mb/s) + Network is renovated for 256QAM? - US 3,5 MHz with 16QAM is used with fall-back mode 2,56…10 Mb/s - Tel: US-POTS, VoIP - Internet: plain internet for the time being, no iTV but video streaming EuroDOCSIS - Node size now 800...2100 later 250 by interactivity + AOP-NTU connection to IHN - No common IHN solution, Ethernet recommended, is the only cheap solution +DS is 8 MHz PAL based. Full 38 Mb/s. European DVB fits in EuroDOCSIS. - Network not good enough for 256QAM - US 1,7 MHz only possible with QPSK, 2,56 may be 5,12 Mb/s in 3,5 MHz + Tel: ETSI-POTS, ISDN, VoIP + Internet: QoS and billing, MPLS, VPN, iTV over Ethernet/ EuroDOCSIS Environmental market conditions are completely different

  38. EuroDOCSIS 1.0 - Telephony is not possible - CoS only - TPA cannot be implemented EuroDOCSIS 1.1 + Telephony VoIP under development + Service enhancement QoS, payload header suppression + IP multicast enhancement and encryption (cond. access) Better operations, SNMP v3, Account mgnt. Fault mgnt. + TPA is possible under certain conditions EuroDocsis 1.0; 1.1; 2.0 EuroDOCSIS 2.0 -Advanced PHY: S-CDMA (ECI like) and Advanced TDMA new hype of US vendors or is the market waiting for it? -Starting development, not be certified before 2004?

  39. Euro-DOCSIS and Telephony Cursus voor niet-technici 3 Mei 2002

  40. VoIP / IP Telephony / Internet Telephony • Gedachten van VoIP varieren van persoon tot persoon • 3 verschillende voorbeelden VoIP / IP Telephony: - Voice-over-Internetmeestal ‘PC-to-PC’ of ‘PC-to-Phone’- Corporate VoIPbedrijfstelefonie, o.a. PBX- Carrier-grade VoIP gebruikelijke analoge telefoon De verschillen worden bepaald door type IP netwerk, toegepaste protocollen, apparatuur, e.d.

  41. IP-based data services Voice/Video Conferencing iTV services PacketCable / IPCablecom Platform PacketCable / IPCablecom Protocols Internet Protocol EuroDOCSIS 1.1 Platform MAC, Media Access Control (addressing) PHY, Broadband Modem Physical layer (modulation) Architectuur VoIP is gebaseerd op een open architectuur

  42. Geschiedenis van Carrier-GradeVoIP over Cable • In 1998 begon CableLabs met PacketCable (Pkt) • Begin 2001 begon ECCA met IPCablecom project • In maart 2001 begonnen ETSI en ITU-T met technische specificaties voor IPCableCom • Omvattende aanpassingen in ETSI IPCablecom standaarden zorgen voor vertragingen in het proces • GEVOLG:Onzekerheid over certificatie en onduidelijkheid over definitieve eisen

  43. New Generation Platform (NGP) • Casema project NGP doelstelling is selectie van: ‘Euro-DOCSIS 1.1 + IPCableCom’ apparatuur • Fasering van NGP • Fase 1: Internet services (vervanging Com21) • Fase 2: Third-Party access voor andere ISPs • Fase 3: Self Provisioning & Self Installation • Fase 4: Telefonie

  44. Voice-over-NGP I • 2 architecturen gedefinieerd in IPCableCom: • Fully VoIP (softswitch-gebaseerd) • Switched VoIP (gebruikmakend van PSTN switch) Casema heeft voor de ‘switched VoIP’ architectuur gekozen!

  45. Third party Core network HFC Network Customer premises IPCablecom (switched VoIP) TDM-traffic TSP EuroDOCSIS 1.1 TSP POTS(ISDN optional) TSP Transmission 3rd 3rd AOP V5.2 HFC SS7 & Routers Casema party party VGW CMTS + switch CM switch switch NTU Network MTA MTA* * The MTA can be external or embedded in the CM Legend Telephony signals Router EuroDOCSIS Voice-over-NGP IISwitched VoIP architectuur

  46. Casema and/or Third party Core network HFC Network Customer premises IPCablecom Euro-DOCSIS 1.1 CMS TSP TSP SIP NCS CMS a1 HFC AOP MGC CMTS + PCM+MF sign. CM network NTU a2 MGW ANS POTS SS7 KPN MTA SGW (ISDN MTA* ANC optional) ANP Casema switch Legend Telephony media flow Telephony signalling Router EuroDOCSIS Voice-over-NGP IIIFully VoIP architectuur

  47. Het iTV platform in NGP 3 mei 2002

  48. Behandeld zal worden 1. Mogelijkheden van het gebruik van het iTV platform in relatie tot NGP 2. Aandachtspunten c.q. mogelijk te verwachten problemen

  49. Algemeen Twee scenario's voor transport interactieve data: • Via telefoonlijn dmv POTS modem in de STB: • Via KPN • Via MTA in het kabelmodem • Via kabel, down- and upstream via het HFC netwerk. Twee verschillende stromen: • A/V broadcast = het oversturen van het digitale video, audio en extra programma informatie, uitgezonden in een DVB-downstream kanaal. • Interactieve data = persoonlijke en signaleringsdata, verzonden in EuroDOCSIS 1.1 downstream en upstream kanalen of via de telefoonlijn.

  50. HFC netwerk SDH netwerk R TV Huidige situatie: telefoon retour via KPN Conventionele A/V broadcast via DVB Applicatie server Modem pool KPN switch KPN Telefoon lijn Interactieve data

More Related