1. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Broadband Trial Integration ACTS AC362 Piotr Pacyna, Zdzisław Papir Arturo Azcorra, Niels Andersen pacyna@kt.agh.edu.pl

2. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Project partners DSC Communications Portugal Telecom - CET Polish Telecom Teledanmark Telebit Communications A/S Universidad Politecnica de Madrid University of Edinburgh UNI-C AGH Cracow University

3. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Project objectives Verification of the level of integration of two quite distinct network architectures (IP, ATM) and the way they support quality-oriented application Search for appropriate mappings between IP layer QoS following IntServ model, and corresponding QoS parameters and QoS setup mechanisms of the ATM Search for viable migration paths from present day IP to next generation IP - IPv6

4. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Technical means Development of IntServ QoS controlled network based on IPv6, RSVP, NHRP and ATM with m-cast SVCs Set up of international, high speed links to connect broadband islands, verify design principles and implementation Development of educational user applications employing capability of the network to control QoS

5. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Field trials

6. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Testbed OLM ONU NTTE Optical Distribution Network xDSL Last drop PVC Access Protocol Architecture Signalling and Control Plane UNI 4.0 ATM layer IPv6 / RSVP IP layer UNI 4.0 Feeder network ATM SDH LT Access Node SDH LT APON LT IP router Content Server IP and ATM Integration AAL5 IP SDH ATM AAL5 IP Qos Applic. SDH ATM AAL5 IP Qos Applic. SDH ATM SDH ATM PHY xDSLPHY ATM PONxDSL ATM SDHPON ATM

7. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH IP and ATM - interoperation issues Transparent support for existing apps, protocols and OS Support for multicast Address resolution Connection oriented service Connectionless service Interworking of legacy LAN and ATM

8. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH QoS support two things required: Individual network elements along data distribution paths Methods to communicate the requirements to network elements, and to convey QoS management information

9. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH IPv6 router extension RSVP for IPv6 RSVP interface to PIM for m-cast reservations Controlled Load reservations over CBR and VBR SVCs Guaranteed Delay reservations over CBR SVCs Policy function for ATM SVCs

10. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH IP multicast in the router Multicast routing for IPv4/IPv6 through PIM Intra domain routing for multicast groups PIM-SM rendezvous point through election mechanism Build distribution tree for multicast group

11. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH RSVP and ATM – key interoperation issues A key issue for QoS-capable IP service in an ATM environment is the integration of RSVP signalling and ATM signalling in support of the Integrated Services QoS translation VC management

12. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Service model User Node Services Node(s) Transport Network Service Node Access Network SAService Access TATransport Access UA User Access RGResidential Gateway NTNetwork Terminator SAService Access TATransport Access UA User Access RGResidential Gateway NTNetwork Terminator Digital Video Digital Telephony Internet Access Other Services SPNSPN UA SA TA SA Video Server GW Telephony LAC o BAS LAN PSTN Other Networks ATM/FR SMDS/... ISP Corp orate GW ATM NT RG ATM

13. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Access network integration PON Passive Optical Network ONU Optical Network Unit OLT Opitcal Line Termination UA User Access RG Residential Gateway SA Service Access TA Transport Access DSLAMDigital Subscriber Line Access Multiplexer PON Passive Optical Network ONU Optical Network Unit OLT Opitcal Line Termination UA User Access RG Residential Gateway SA Service Access TA Transport Access DSLAMDigital Subscriber Line Access Multiplexer Access NetworkSPNTransport network RG Fibre ATM UNI UA - FTTH ONU Services RG Fibre ATM UNI UA - ATM to the Home Services ONU UA - xDSL + PON ATM UNI Services Pairs xDSL modem RG xDSL modem RG ATM UNI Services Pairs xDSL modem UA - xDSL+DSLAM DSLAM xDSL modem Fibre ATM PON TA OLT

14. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Integrated Access to NSPs: L2TP Access Aggregation PPP ATM AAL5 ATM AAL5 PPP PPP over ATM (PVC) FR,ATM, SMDS,... IP L2TP PPP FR,ATM, SMDS,... IP L2TP Tunnel L2TP UA and Terminal DSLAMLACLNS Native PPP ATM, 802.3, FDDI,... Network Protocol Network Protocolo Physical xDSL PhysicaPhysical xDSL

15. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Integrated Access to NSPs: PPP Terminated Aggregation ATM AAL5 ATM AAL5 PPP PPP over ATM (PVC) PPP Physical xDSL ATM, 802.3, FDDI,... Physical xDSL DSLAMBAS Router UA and Terminal IP FR, ATM, SMDS,... IP FR, ATM, SMDS,... Physical

16. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Service integration in the residential gateway Applications AAL Physical only ATM ATM IP PPP Physical ATM AAL5 Applications Trans. IP over ATM RSVP Applications IEEE 802.3,... Integrated IP PPP Physical ATM AAL5 Trans.RSVP IEEE 802.3 IP Applications Tran.RSVP Ethernet

17. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH IP/ATM Multicast Integration OLM xDSL Feeder network ATM IP router Content Server NTRG ONU NTRG NTRG xDSL NTRG ONU NTRG NTRG ATM Oversubscription

18. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH IP/ATM multicast integration OLM xDSL Feeder network ATM IP router Content Server NTRG ONU NTRG NTRG xDSL NTRG ONU NTRG NTRG Oversubscription

19. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Applications in the network features: point-to-point and multipoint sessions dynamic membership symmetric / asymmetric bandwidth low / moderate / high bandwidth requirements various latency bounds

20. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Shared workspace session desktop chat tool shared text editor shared web browser shared whiteboard

21. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Video conferencing tool m-point session support dynamic membership mgmt unicast/multicast connections RSVP-aware being migrated to IP6 now Picture here

22. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Audio conferencing tool m-point session support dynamic membership mgmt unicast/multicast connections RSVP-aware PCM,  -law, ADPCM, GSM

23. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Video Retrieval Service MPEG1 SIF textual descriptions search by category / keyword m-point session (centralized ctrl) dynamic membership RSVP reserv.

24. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH QoS requirements

25. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Performance evaluation Traffic engineering approach - netperf Subjective quality assessment  traffic generator  UDP, TCP  Windows NT, Sun Solaris, HP,...  scenarios for testing  users’ evaluation

26. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Conclusions IETF IntServ Model – complete proposal for QoS IP internet, – promotes evolutionary approach, – preserves present-day IP network – well suited for medium size communities like access networks, where:  no scaling problem,  resources are scarse,  per-micro-flow guarantees required

27. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Conclusions IP6 / RSVP over ATM provides many potentials – each protocol contributes valuable and unique properties – each protocol imposes significant technical barriers Integrating IP, RSVP, ATM is not seamless. In fact it is complex.  need for series of simplifying assumptions

28. AIMS’99 Workshop Heidelberg, 11-12 May 1999 © DIT-UCIIIM, KT AGH Conclusions Commercial software/hardware solutions are good at one thing, but poor at supporting the mix Pre-commercial solutions are being developed and improved  the situation changes at high pace  there is still much to be done IPv6 multicast applications can successfully be developed and tested in local environments