2. AIMS Workshop Heidelberg, 9-11 March 1998 IP-ATM convergence and integration: the ACTS PeterPan Project Giancarlo Rigolio Italtel PeterPan Project coordinator

3. AIMS Workshop Heidelberg, 9-11 March 1998 PETERPAN: PETERPAN: Provision of an Enhanced Transport by Exploiting Reservation in IP and ATM Networks Provision of an Enhanced Transport by Exploiting Reservation in IP and ATM Networks The Project relates to 3rd call task AC321 “Convergence and integration: Internet-ATM” “Convergence and integration: Internet-ATM” and aims to define,specify,implement, and demonstrate define, specify, implement, and demonstrate an hybrid IP-ATM architecture for QoS support

4. AIMS Workshop Heidelberg, 9-11 March 1998 Three main ideas Internet and MultimediaQuality of Service IP and ATM integrationmaximise flexibility, avoid duplications of functionalities exploit what ATM offers The PeterPan Approachin access and core network

5. AIMS Workshop Heidelberg, 9-11 March 1998 Multimedia and then... Multimedia:Multimedia: real time ==> QoS, speed,... ATM:ATM: speed, flexibility, QoS associated with “traffic classes” (CBR, VBR,..) Internet/IP:Internet/IP: bottlenecks, best effort, standards “de facto”, intense interoperability, contents, users’ acceptance,... ATM Internet Internet Other … and, Internet is growing - as traffic volume - with QoS-aware applications

6. AIMS Workshop Heidelberg, 9-11 March 1998 Internet and Multimedia: the novelty of QoS An example: real time videoHave you ever attempted, surfing the WEB, to watch a real time video? how long have you been watching it before to abandon? sleeping jumpif you do not abandoned, it was probably because you were already sleeping, still waiting for it to progress (unless an image jump shakes you!)

7. AIMS Workshop Heidelberg, 9-11 March 1998 realtime quality real time quality: acceptable resolution, image continuity requires bandwidth, bounded delay, … NO QoS guarantees NO QoS guarantees: uncertain bandwidth, no bounded delay, … poor resolution, jumps (lost images), slow motion,..

8. AIMS Workshop Heidelberg, 9-11 March 1998 News in Internet (IETF) New internet service model packet based Best Effort IIS Internet Integrated Services (Internet Differentiated Services) Stateless flow based, soft state FIFO routers Multiple queues, services based packet scheduling

9. AIMS Workshop Heidelberg, 9-11 March 1998 Internet-ATM: is the integration possible? (soft) state packet based connectionless + flow cell based connection oriented packet scheduling IIStraffic classes (hard) state per connection QoS guarantees admission control CAC + Policing New Internet ATM resource reservation connection acceptance

10. AIMS Workshop Heidelberg, 9-11 March 1998 EvolutionEvolution Migration (if any) from IP-based to ATM-native solutions will not be generalised, thus mixed IP and ATM scenarios will last for long, and is difficult to speculate how figures will evolve ATM and IP will coexist in next future Full use of ATM (including signalling) allows efficient support for both, irrespectively their market share and uncertainty of evolution trend

11. AIMS Workshop Heidelberg, 9-11 March 1998 State of the art Standardisation IETF:Classical IP-over-ATM, NHRP MPLS IIS (ISATM), Differentiated Services RSVP ION, QoS Routing ATMF:LANE / MPOA PNNI-PAR Proprietary solutions: Within routers: Level 2 switching (cut-through) Between routers: IP switching (Ipsilon), CSR (Toshiba), Tag Switching (CISCO), ARIS (IBM) …

12. AIMS Workshop Heidelberg, 9-11 March 1998 IP packets “on the fly” IP processing (IP switching) mapping to ATM VCCs (trunking / dedicated connections) - use of B-ISDN signalling - traffic scheduling / VC shortcut - routing / QoS-routing IP flows identification via RSVP, traffic monitoring, subscription, … PeterPan: merging “the best” of IP and ATM avoiding duplications (and contending dynamics)

13. AIMS Workshop Heidelberg, 9-11 March 1998 PeterPan focus IP AAL/ATM App. IP nonATM App. IP AAL/ATM App. Edge router IP AAL/ATM IntegratedIP-ATM switch switch ATM switch IP router ATM I/F ATM I/F

14. AIMS Workshop Heidelberg, 9-11 March 1998 IP processing in the core network? R R R R ATM switching dedicated VC for QoS trunking merging

15. AIMS Workshop Heidelberg, 9-11 March 1998 PeterPan Consortium Italtel(Italy) HP(UK) Telecom Italia(Italy) Cselt(Italy) Inesc(Portugal) Lancaster University(UK) NTUA(Greece) UCLA(USA) Università di Pisa(Italy)

16. AIMS Workshop Heidelberg, 9-11 March 1998 WP0 Project Management WP11 Arch. Spec WP12 Traffic Studies WP21 Control Plane impl. WP23 Applications upgr. WP22 Traffic Hand. impl. WP31 Initial Platform int. WP33 Trial WP32 Final Platform int. PeterPan work break-down

17. AIMS Workshop Heidelberg, 9-11 March 1998 Los Angeles Lisbon Lancaster Pisa Milan Gigakit network IP & ATM users groups PON users group ATM core and edge sw. IP-over-ATM and RSVP mapping to ATM TC Interactive MM Retrieval, Videotelephony IP & ATM LAN Telemedicine Traffic measures Local ATM environment IP-over-ATM and RSVP IP scheduling Flexible-programmable ATM nodes Connection to NSF Gigakit net. IP-over-ATM and RSVP, QoS routing Virtual world, telemedicine, multimedia Local ATM environment IPv4.vs. IPv6 Multimedia serv. with QoS PeterPan Project trial sites PeterPan Project trial sites

18. AIMS Workshop Heidelberg, 9-11 March 1998 Los Angeles Lisbon Lancaster Pisa Milan Gigakit network and... and... PeterPan’s PeterPan’s Never island and... and... PeterPan’s PeterPan’s Never island