1. 1 Terena Networking Conference 2000, Lisboa 22-25 May QoS in IP over ATM Networks Terena Networking Conference 2000 Lisboa, 22-25 May The BTI field trials

2. 2 Terena Networking Conference 2000, Lisboa 22-25 May ACTS BTI - Broadband Trial Integration (May 98 – December 99) Objective: to setup and evaluate a concept for implementing Integrated Services in an ATM PON-based access network Participants:  DSC/Tellabs (Denmark)  Ericsson/Telebit (Denmark)  UNI-C (Denmark)  U. Politécnica de Madrid (Spain)  University of Edinburgh (Scotland)  Univ. Mining and Metalurgy (Poland)  TeleDenmark (Denmark)  Telekomunikacja Polska (Poland)  PT Inovação (Portugal)

3. 3 Terena Networking Conference 2000, Lisboa 22-25 May Introduction QoS in IP over ATM multicast networks RSVP/Integrated Services ATM BTI field trials BTI network architecture Evaluation of field trials Conclusions Summary

4. 4 Terena Networking Conference 2000, Lisboa 22-25 May QoS in IP over ATM multicast networks

5. 5 Terena Networking Conference 2000, Lisboa 22-25 May Resource Reservation Protocol (RSVP) OrientationReceiver-based StateSoft state QoS setup timeSeparate from route establishment QoS changesDynamic QoS DirectionalityUnidirectional resource allocation MulticastReceiver heterogeneity

6. 6 Terena Networking Conference 2000, Lisboa 22-25 May RSVP multicast reservation mechanisms sender receiver 2 PATH RESV2 RESV1 receiver 1

7. 7 Terena Networking Conference 2000, Lisboa 22-25 May Asynchronous Transfer Mode (ATM) RSVPATM OrientationReceiver-basedSender-based StateSoft stateHard state QoS setup timeSeparate from route establishment Concurrent with route establishment QoS changesDynamic QoSStatic QoS DirectionalityUnidirectional resource allocation Bidirectional allocation for unicast Unidirectional allocation for multicast MulticastReceiver heterogeneityUniform QoS

8. 8 Terena Networking Conference 2000, Lisboa 22-25 May multicast server ATM multicast multicast mesh

9. 9 Terena Networking Conference 2000, Lisboa 22-25 May Multicast Address Resolution Server - MARS atm1 atm2 atm3 MARS Request {mcast IP address} {mcast IP address, atm1, atm2, atm3} MARS Multi MARS server ClusterControl VC

10. 10 Terena Networking Conference 2000, Lisboa 22-25 May  Mapping service classes: ->  RSVP Guaranteed Service -> ATM CBR / rtVBR  RSVP Controlled Load Service -> ATM ABR / nrtVBR  Best effort -> ATM UBR / ABR RSVP with ATM multicast  Other issues (e.g. multicast heterogeneity, dynamic QoS)  Relationship RSVP flows/ATM VCs IS model parameters  r – average token bucket rate  p – peak data rate  b – token bucket depth  M – maximum packet size  m – minimum policed unit size  Mapping traffic descriptors: ATM model parameters  PCR  SCR  MBS  CDVT

11. 11 Terena Networking Conference 2000, Lisboa 22-25 May RSVP with ATM multicast BE pt-mpt VC PATH QoS pt-mpt VC DATA RESV2 Pt-pt VC with MARS server Pt-mpt ClusterControl VC BE pt-pt VC RESV1 Register ATM(A) MARS SERVER ClusterControl VC A B1 B2 M A R S _ J o i n ( B )

12. 12 Terena Networking Conference 2000, Lisboa 22-25 May BTI Field Trials

13. 13 Terena Networking Conference 2000, Lisboa 22-25 May BTI field trial sites  Aarhus, Denmark  Krakow, Poland  Aveiro, Portugal

14. 14 Terena Networking Conference 2000, Lisboa 22-25 May OLT ATM25 VDSL ATM25 NT ATM25 VDSL ATM PON architecture OLM ADM SDH  Up to 16 Optical Network Units (ONUs)  Customer interface - 25 Mbit/s ATM  Customers connected directly to ONU or through VDSL modem  PVC connection only ONU NT

15. 15 Terena Networking Conference 2000, Lisboa 22-25 May Main BTI enhancements  Implementation of ATM signalling control in the ATM PON  Implementation of IPv6 in routers, application clients and servers  Integration of RSVP, IPv6 and ATM multicast following the Integrated Services model  Implementation of MARS server and client components  Development of a Winsock2 compatible protocol stack running on Windows NT supporting IPv6, RSVP and ATM  Adaptation of IPv4-based user applications to IPv6 with QoS control through RSVP

16. 16 Terena Networking Conference 2000, Lisboa 22-25 May ADM OLT ATM25 VDSL ATM25 VDSL BTI architecture Server Remote sites/ Internet OLM ASW ONU NT IPv6 Router (inc. MARS server) RSVP Ethernet IPv6 QoS Appl. ATM25 ATM VDSL IPv6 RSVP Q.SAAL AAL5 UNI4.0 SDH ATM SDHPON AAL5 Q.SAAL UNI4.0 ATM PONVDSL ATM AAL5 ATM25 QoS Appl. UNI4.0 IPv6 RSVP Ethernet

17. 17 Terena Networking Conference 2000, Lisboa 22-25 May 2 Mbit/s ATM link Telebit TBC2000 router BTI Field Trial – Global Overview PT ATM PVC + DANTE MBS + Nordunet Denmark trial network Portugal trial network Poland trial network Telebit TBC2000 router Telebit TBC2000 router

18. 18 Terena Networking Conference 2000, Lisboa 22-25 May Portugal-Denmark IPv6 interconnection IPv4-based Nordunet ATM PVC Dante MBS (TEN-155) ATM PVC Portugal Telecom ATM backbone Portugal trial network Denmark trial network IPv6-over-IPv4 tunneling IPv6 ATM IPv4

19. 19 Terena Networking Conference 2000, Lisboa 22-25 May ASWONU Router ONUASW Router Field Trial Site A Field Trial Site B IPv6/ATM User evaluation - basic scenario

20. 20 Terena Networking Conference 2000, Lisboa 22-25 May BTI field trials: overall evaluation  BTI networking features were successfully implemented (e.g. IPv6, RSVP, ATM signalling, multicast);  IPv6 interconnection of field trials was achieved; IPv6-IPv4 cooperation via tunneling was demonstrated as an effective tool for interconnection of IPv6 islands;  Real users collaborated using QoS-enabled applications over IPv6 in the field trials; usability testing was carried out;  BTI Integrated Services over ATM PON network concept was demonstrated and validated by the field trials;  Complexity of RSVP/ATM integration may be a problem against widespread deployment of the solution.

21. 21 Terena Networking Conference 2000, Lisboa 22-25 May  Scalability evaluation of the BTI network concept  Interworking with diffserv-based backbone networks BTI domain 3 Diffservdomain Topics for further study BTI domain 1 BTI domain 2

22. 22 Terena Networking Conference 2000, Lisboa 22-25 May References  RFC 1821 – “Integration of Real-time Services in an IP-ATM Network Architecture”  RFC 2022 – “Support for Multicast over UNI 3.0/3.1 based ATM Networks”  RFC 2380 – “RSVP over ATM Implementation Requirements”  RFC 2381 – “Interoperation of Controlled-Load Service and Guaranteed Service with ATM”  RFC 2382 – “A Framework for Integrated Services and RSVP over ATM”