An experiment in videoconferencing over IPv 6 using

An experiment in videoconferencing over IPv 6 using Isabel Michael Stanton michael@rnp. br Director of Innovation, RNP, Brazil FLIP-6, Montevideo, March 2004 (Thanks to Graciela M. L. Martins and Marcelo R. Faria for use of their slides) RNP/PAL/xxxx © 2004 – RNP

Agenda • RNP IPv 6 Backbone and Peerings • What was the event? • What was this videoconference experiment? • What is the Isabel application? • Conclusion Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

Rede Nacional de Ensino e Pesquisa - RNP • RNP is a “quasi non-governmental organisation” (quango), formally a non-profit company, maintained by the federal government through a mangaement contract • Offers production IP service to research and education community in Brazil, through a national backbone (one Po. P in each state) – Around 240 client institutions, normally connected to state networks (in the more populous states), or directly to the local Po. P • Good national and international connections to R&E and commodity networks • Responsible also for exploring new networking technologies and developing new networking techniques – IP/WDM, multicast, Qo. S, IPv 6 Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

RNP IPv 6 Backbone Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

RNP IPv 6 Backbone • Routers with dual-stack: same equipment used in the IPv 4 production service • Native IPv 6 links (ATM) and tunnels (IPv 6/IPv 4) • RIPng is the internal routing protocol • BGP 4+ for external routing • Cisco 750 x with IOS images 12. 2(14)S Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

Peerings • Currently RNP has IPv 6 peering with seven other networks: • Abilene / Internet 2 - USA (native) • AMPath – USA (native) • Renater – FR (tunnel) • RCCN – PT (tunnel) • ESNET – USA (tunnel) • NTTcom / Verio – USA (tunnel) • Telefônica Empresas Brasil – BR (native) Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

Also, the future CLARA network (June 2004) will also support native IPv 6 • Built and operated (2 years) throughh the ALICE project – Jointly financed by EU (80%) and LA NRENs (20%) • Bandwidth: – Main ring: 155 Mbps – Link to GÉANT: 622 Mbps – Spur links: 10 to 45 Mbps (except Cuba – by satellite) – Access: up to 155 Mbps • Peering, etc: – GÉANT – Future: ABILENE, APAN nets – Transit to LA NRENs • IPv 6 connectivity: – Native from day one Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil Clara

Event: Global IPv 6 Service Launch Event – Brussels, January 2004 • The experiment was organised by the Euro 6 ix project of the IST programme (EU), coordinated by Telefónica Investigación y Desarrollo (Telefónica I+D) from Spain – Coordinator: Carlos Ralli Ucendo • Participation by Telefônica Pesquisa e Desenvolvimento (TPD), part of Telefônica Empresas Brasil (TEB), and the Brazilian R&D community, coordinated by RNP • Objective: to demonstrate the use of IPv 6 applications – Magalia (network management) – Isabel (remote collaboration) • The Brazilian R&D community participated in demonstrating the Isabel application – Support from the Isabel team at Universidad Politécnica de Madrid (UPM), coordinated by Maria José Perea Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

Global Event – Network Topology 2001: 618: a: : /48 UK 6 X AS 1752 AMSIX-IPv 6 AS 1200 LINX-IPv 6 AS 5459 2001: 7 f 8: 4: : 1553: 1 6 NET/GEANT AS 6680 2001: 7 f 8: 1: : a 500: 1200: 1 Londres 2001: 800: 40: 2 E 02: : 2 Amsterdam MAD 6 IX 2001: 800: 40: 2 E 02: : 1 2001: 800: 40: 2 F 01: : 1 Telefónica DATA 2001: 1498: 1: E 004: C: 3352: 100: 0/126. 1. 2 TIWS AS 12956 2001: 1498: : /32 Madrid 2001: 1820: : /32 . 5. 6 2001: 1498: 1: E 004: C: 3352: 100: 4/126 . 1 2001: 800: 40: 2 F 1 A: : 1 Sao Paulo 2001: 1498: 1: A 101: C 1: 0429: 100: 0/126 STM-4 RNP 2001: 12 F 0: : /32 2001: 800: 40: 2 F 1 A: : 2 STM-4 STM-1 Telefónica Empresas Brasil AS 10429 Windows XP IPv 6 Clients STM-1 Gb. Eth Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil AS 1916 2001: 800: 40: 2 F 01: : 2 PC-Brasil ISABEL MAGALIA IPv 6 Clients mortadelo. tid. euro 6 ix. com MAGALIA 2001: 800: 40: 2301: : 101 www. tid. euro 6 ix. org 2001: 800: 40: 2601: : 4 Telefónica I+D AS 3352

Event – Network Topology EUROPE Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

Event – Participants (RNP side) • Three RNP Offices: Campinas, Brasília and Rio de Janeiro • Three Brazilian Universities: • Federal University of Santa Catarina (UFSC) • Federal University of Rio de Janeiro (UFRJ) • University • of São Paulo (USP) One regional networks: Rede-Rio (Rio de Janeiro) Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

What is the Isabel application? Isabel is a real time service creation environment launched in 1993 by UPM. Today, it is commercialised by Agora Systems S. A. • A free version is available, with limited functionality. The commercial version includes more features and supports collaboration services such as tele-teaching and teleconferencing. • The aim is the interconnection of a large number of users in multipoint conferences. • Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

What is the Isabel application? Isabel adapts collaboration sessions to users’ needs, by including predefined scenarios: Tele-meeting: links meeting rooms and allows a free mode of interacting, allowing each participant to react at any moment. • Tele-training: links classrooms and allows a strict floor control by the instructor of the interactions taking place. In this case, the instructir can bring any site into scene at any moment and students must request intervention. • Tele-conference: this is a distributed conferencing service and is based on centralised control which guarantees timely delivery of content. • Other new services can be configured by modifications to existing services. • Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

What is the Isabel application? Source: http: //isabel. dit. upm. es/intro. html Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

What is the Isabel application? System requirements: Based on Su. SE Linux 8. 1 operating system. Both the operating system and the application can be installed and configured using an instalation CD. • • Requires at least a Pentium IV with 256 MB RAM. Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

Impressions about the use of Isabel • Different versions of Isabel cannot interoperate with each other The hardware requirements are very important to assure good quality during the conferences. • The use of an operating system different from Su. SE can make it difficult to configure Isabel. • The use of a chat software (IRC) was very important to prepare the endpoints and resolve the problems with audio and video. • Isabel doesn’t support the same quality that a endpoint specific equipment, such as a Polycom View. Station or Tandberg Station, but represents a very good solution for distance education or collaboration when there is a need for a large number of endpoints. • Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

Performance problems during the experiment • The quality of the link used is very important. A big problem found during the experiments was the packet loss at the connection between the RNP and Telefônica networks in São Paulo • probably due to inadequate RNP router capacity at the peering point – will be fixed for “next time” • Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

Conclusion • This was the first demonstration in Brazil of a non-trivial application over IPv 6 • Except for the performance problems, which are unrelated to the technology used, the experiment was considered to have been a success – Participants were very enthusiastic and contributed a lot of time and energy to the project • Most important lesson: IPv 6 will only really prosper when the users can see advantages in its use – this requires the availability of significant applications. • Many thanks to all partners and participants! Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil

References • • IPv 6 at RNP www. rnp. br/en/ipv 6/ LACNIC www. lacnic. net Euro 6 ix www. euro 6 ix. org • Global IPv 6 Service launch event, Brussels, January 2004 www. global-ipv 6. net • Isabel group at UPM isabel. dit. upm. es • Isabel distribution of the Madrid Global IPv 6 Summit 2002 over an IPv 6 transition network isabel. dit. upm. es/papers/isabelipv 6/Isabelv 6 SAINT 2002 v 3. pdf Rede Nacional de Ensino e Pesquisa Promovendo o uso inovador de redes avançadas no Brasil