STIC-ASIA : Next Generation Internet for Medical Science Remote Classroom project IPv6 multicast on french side SOI Asia/AI3 joint Meeting 2006’ Spring.

STIC-ASIA : Next Generation Internet for Medical Science Remote Classroom project IPv6 multicast on french side SOI Asia/AI3 joint Meeting 2006’ Spring 18-20 April 2006, Hua Hun, Thailand Hello… I’m Lionel David, engineer at the Paris Academic Network, I will explain after what’s it…. …And I will present to you how French partners of the STIC ASIA project for Medical Science Remote Classroom are accessing to IPv6 multicast service. Classes de service et nouveaux usages de RAP

Agenda Physical path from France to Asia
Global Architecture French and European Networks : UPMC RAP RENATER GEANT From Europe to Asia : TEIN IPv6 multicast logical path from France to Asia M6Bone Network Global architecture for IPv6 mutlicast Tests and results on french side with DVTS I will present to you the networks concerned by this project on the french and european side, partners and crossed network… …Then, we will see how the UPMC site (Saint-Antoine Hospital) is accessing to the IPv6 multicast service in order to transmit with DVTS. Classes de service et nouveaux usages de RAP

Physical global architecture
GEANT TEIN RENATER RAP Video-conference for the Next Generation Internet for Medical Science Remote Classroom project is transmitted by the UPMC Schools of Medicine with DVTS at 32MBit/s UPMC Paris France Europe Toward Asia Classes de service et nouveaux usages de RAP

UPMC UPMC : Pierre & Marie Curie University URL : http://www.upmc.fr
One of the largest universities teaching science and medecine in France, and indeed in Europe : 4000 researchers and teaching academics/researchers 180 laboratories 30000 students including 8000 in postgraduate studies UPMC is based in the Latin quarter in Paris : Campus of m2 Medicine : 2 medical teaching and research units in Paris teaching hostpitals (CHUs) : Saint-Antoine school of medicine Pitié-Salpêtrière school of medicine These 2 entities are partners of the STIC-ASIA project UPMC means « Pierre and Marie Curie University » which is one of the largest universities teaching science and medecine in France, and indeed in Europe : 4000 researchers and teaching academics/researchers 180 laboratories 30000 students including 8000 in postgraduate studies There are 2 medical teaching and research units which are : Saint-Antoine School of Medicine Pitié-Salpétrière School of medicine DVTS videoconference is transmitted by the Saint-Antoine School of Medicine. Classes de service et nouveaux usages de RAP

GEANT TEIN RENATER RAP 1GBit/s UPMC is located in Paris. To access to the Internet and the research networks, UPMC is connected with GigaEthernet link to the Paris Academic Network (RAP). A High speed Metropolitan Area Network for research and educational in Paris. UPMC Paris France Europe Toward Asia Classes de service et nouveaux usages de RAP

RAP RAP : Paris Academic Network URL : http://www.rap.prd.fr
5 Points of Presence (Optical DWDM ring between the PoPs) 52 establishments, 116 sites users (study of october 2005) Services : Level <= 2 : VLANs and wavelenght dedicated IPv4 and IPv6 unicast VPN IPv4 and IPv6 multicast Quality of service Multimedias applications Network Support The core of rap is built over an optical network, itself built on leased optical link, more precisely on leased single optic fiber… …It connects 52 establishments (Parisian universities (intramurally), Research : CNRS, INSERM, …, High education : Engineers, economics schools, Great establishments)… …what represents 116 sites (82 sites connected with optical fiber (primarily in FastEth), 25 sites SDSL (2 or 4 Mbit/s), Specific connections for a few sites (operators offers, hertzian beams…)… …and users (study of october 2005) (33000 researchers, administrative and technical staffs, students) …In term of services, …At level 1 and 2, RAP can provide : VLANs (802.1Q), Lambdas dedicated (on backbone, towards the sites, towards RENATER (GigaEthernet, FiberChanel)… …IPv4 and IPv6 unicast are available with : topology dedicated for IPv6 (VLAN dedicated toward the sites), routing until /32 in IPv4 (OSPF) and /128 in IPv6 (RIPng), BGP full routing on demand… …VPN service… …IPv4 and IPv6 multicast (fully operational for IPv4, meanwhile still pilot service for IPv6 Multicast but tha deployment is native on the network)... …Classes of service with DiffServ and 802.1P classification… …Multimedias applications like : Video on demand (diffusion and hosting), High quality multicast programs (diffusion and hosting), Visioconference gateway, Others (reservation portal, CHAT …)… …and network support with : Métrology and documentation on web for each service, Information system, users portal, Secondary DNS, NTP, mailing-list … Classes de service et nouveaux usages de RAP

Paris Academic Network map
Legend POP (Point of Presence) Optical link DWDM 4 x 1 Gbit/s Optical link 100 Mbit/s ou 1 Gbit/s Link operator Mbit/s Link operator Mbit/s Hertzian beams link Mbit/s CNAM Renater Access Renater Access (implementation for 2006) MALESHERBES AUTEUIL ODEON JUSSIEU CNAM UPMC : Saint-Antoine Faculty of medicine UPMC : Central Campus of Jussieu Here, you can see the RAP network on a Paris map with backbone and sites links, and more specially UPMC and Saint-Antoine School of Medicine sites. Big red line are optical link DWDM 4 GBits/s capacity Red line are optical link Fast or GiagEthernet capacity The purple circle represents the RENATER (National researhc and education network) access with a GigaEthernet link Classes de service et nouveaux usages de RAP

GEANT TEIN 1 GBit/s RENATER RAP 1GBit/s To access to the Internet and the research networks, RAP is connected to RENATER, the French Academic Network with a GigaEthernet link. UPMC Paris France Europe Toward Asia Classes de service et nouveaux usages de RAP

RENATER RENATER : French academic network URL : http://www.renater.fr
About 30 POPs (Point of Presence). More than 600 sites. Current phase of the network : RENATER-4 (deployment completed in November 2005). Services available with RENATER-4 : IPv4 & IPv6 Unicast IPv4 & IPv6 Multicast (fully operational for IPv4, meanwhile still pilot service for IPv6 Multicast) VPN service (MPLS-VPN layer 2 and layer 3) Quality of Service Service of wavelenght to carry big research projects RENATER is about 30 PoPs distributed in France (at least one POP for each French geographic region) on which are connected metropolitan and regional networks... ...More than 600 sites (mainly Universities, Research centres…) are connected to RENATER network via metropolitan and regional networks... ...Services avalilable are IPv4 and IPv6 unicast, IPv4 and IPv6 multicast, VPN, Classes of services and lambdas dedicated for big projects... ...The invitation to tender that had been launched for RENATER-4 network included the following elements... Operation of the network (IP service management) Maintenance for the existing equipment Routers (buy new routers and/or upgrade the existing ones) Switches (buy new switches and/or upgrade the existing ones) Maintenance for the new equipment (routers and switches) WDM equipment Maintenance for the WDM equipment Links for interconnection of RENATER POPs : leased lines and/or dark fibres. Service of lambdas, project exemple : GRID-5000 (5000 CPUs distributed in 9 sites for research in Grid Computing) : LHC (Large Hydron Collider) : DEISA (Distributed European Infrastructure for Supercomputing Applications) : Classes de service et nouveaux usages de RAP

RENATER : RENATER-4 national backbone
SFINX (Global Internet eXchange) 2x10 Gbit/s IP transit connectivity 2x2,5 Gbit/s GEANT-2 European research networks, with extensions to America, North Africa, and Asia Ile de La Réunion Mayotte Nouvelle Calédonie Polynésie 1x10 Gbit/s (IP service) + 2x10 Gbit/s (projects) CERN Overseas Territories Martinique Guadeloupe Guyane Leased line (2,5 Gbit/s) Here, you can see the RENATER backbone on a France map. Backbone is dark fiber or leased line… …International connectivity is essentially localised at the Global Internet eXchange in Paris. Dark fibre Classes de service et nouveaux usages de RAP

GEANT TEIN 1 GBit/s RENATER 1x10 Gbit/s (IP service) + 2x10 Gbit/s (projects) RAP 1 GBit/s To access to the european and international research and educational networks, RENATER is connected to GEANT (European Academic network) with a 10Gbit/slink for IP Service and 20GBit/s link for projects. UPMC Paris France Europe Toward Asia Classes de service et nouveaux usages de RAP

GEANT URL : http://www.geant2.net
GEANT : multi-gigabit research and education network 30 european national research and education networks (NRENs) connected 34 countries served 3 million of end users 3500 institutions across Europe Current phase of the Network : GEANT2 Services : VPN IPv4 & IPv6 unicast IPv4 & IPv6 multicast MPLS Quality of service GEANT is a multi-gigabit research and education network which interconnects 30 european national research and education networks in 34 countries. It represents 3 million of end users in 3500 institutions accross Europe. Services available on GEANT2 are : VPN IPv4 & IPv6 unicast IPv4 & IPv6 multicast MPLS Classes of service Classes de service et nouveaux usages de RAP

GEANT2 map Here you can see the GEANT2 backbone on an Europe map. Links are dark fiber in black, 10GBit/s in purple, 5 Gbit/s in green… Classes de service et nouveaux usages de RAP

from Europe to Asia GEANT TEIN 1 GBit/s RENATER 1 x 622 Mbit/s + 3 x 622 Mbit/s 1x10 Gbit/s (IP service) + 2x10 Gbit/s (projects) RAP 1 GBit/s To access to the education and research asian networks, GEANT iinterconnects with TEIN2 with four links at 622 Mbit/s. UPMC Paris France Europe Toward Asia Classes de service et nouveaux usages de RAP

TEIN URL : http://www.tein2.net
TEIN : Trans-Eurasia Information Network Europe-Asia link for research and education 10 regional partners IPv4 & IPv6 unicast IPv4 multicast TEIN is the Trans-Eurasia Information Network which links research and education networks of Europe and Asia. It interconnects 10 regional partners. Services available are IPv4 and IPv6 unicast, IPv4 multicast…maybe other but I don’t have the information on my side. Classes de service et nouveaux usages de RAP

TEIN2 Here is the TEIN2 network on an Asia region map.
Classes de service et nouveaux usages de RAP

GEANT TEIN RENATER RAP Asian Region (WIDE, AIT…) Finally, you can see the network path between UPMC and research and education asian networks. UPMC Paris France Europe Toward Asian region Classes de service et nouveaux usages de RAP

Traceroute from RAP to WIDE
#traceroute 1 1ms 1ms ms cr-jussieu.rap.prd.fr [ ] 2 2ms 16ms 3 ms gw-rap.rap.prd.fr [ ] 3 1ms 1ms ms jussieu-g cssi.renater.fr [ ] 4 15ms 2ms ms nri-c-pos2-0.cssi.renater.fr [ ] 5 1ms 1ms ms nri-b-g cssi.renater.fr [ ] 6 2ms 2ms ms renater.rt1.par.fr.geant2.net [ ] 7 11ms 11ms 10 ms so rt1.gen.ch.geant2.net [ ] 8 19ms 19ms 18 ms so rt1.fra.de.geant2.net [ ] 9 235ms 237ms 241 ms sg-so m.bb-v4.noc.tein2.net [ ] 10 280ms 280ms 280 ms jp-sg.pr-v4.noc.tein2.net [ ] ms 293ms 293 ms tpr5-ge jp.apan.net [ ] 12 290ms 290ms 289 ms wide.t-lex.net [ ] 13 289ms 289ms 290 ms ve-51.foundry6.otemachi.wide.ad.jp [ ] 14 290ms 290ms 290 ms ge-2-0-v4.cisco1.fujisawa.wide.ad.jp [ ] This is a traceroute which shows the network path between RAP and WIDE : path is RAP – RENATER – GEANT2 – TEIN2 - WIDE Classes de service et nouveaux usages de RAP

IPv6 multicast architecture
How UPMC site is accessing to the IPv6 multicast service for transmitting with DVTS ? Logical path for IPv6 multicast from France to Asia The M6Bone network : ( What is the M6Bone ? An IPv6 Multicast test network M6Bone started in July 2001 (Aristote association, G6 and RENATER) 28 networks & 50 sites Goals To offer IPv6 Multicast connectivity to interested sites Test and develop soft and equipments related to IPv6 Multicast technologies Be active in IPv6 multicast standardization To deploy an advanced service on IPv6, in order to participate in the dissemination of the protocol Now, we will see how UPMC is accessing to the IPv6 multicast service to transmit with DVTS towards Asia… …To transmit DVTS IPv6 multicast flows towards Asia, we use M6Bone network!! What’s the M6Bone network ? It’s an IPv6 mutlicast test network which started in July 2001 in France and interconnects today 28 networks and 50 sites. What’s the goals of this network ? To offer IPv6 multicast connectivity to interested sites to test and to develop soft and equipments related to IPv6 multicast technologies, to be active in IPv6 multicast standardization and provide deployment recommendation and to deploy an adavanced service on IPv6, in order to participate in the dissemination of the protocol Classes de service et nouveaux usages de RAP

M6Bone Connectivity Topology routing PIM – multicast trees
IPv6 multicast is deployed natively in more and more networks Need to bypass the routers not supporting IPv6 multicast (IPv6-in-IPv6, IPv6-in-IPv4, GRE tunnels) Topology routing MBGP Static IPv6 multicast routes PIM – multicast trees PIM-SMv2 (requires MLDv1) and PIM-SSM (requires MLDv2) Global RP in RENATER Interdomain multicast No MSDP available in IPv6 Embedded RP under deployment Applications and services : Every IPv6 stack supports MLD and few applications use MLDv2 Videoconferencing and diffusion : VIC/RAT, Videolan, DVTS, Isabel, WM player 9 Radio broadcast : Freeamp Others : NTE, WB, MAD, SDR Reflectors Monitoring Connectivity / Traffic : ping, SNMP Routing : AS-Path-Tree PIM – Multicast topology : beacon and dbeacon What are the caracteristics of the M6Bone ? In terms of connectivity, IPv6 multicast is deployed in more and more networks, but on others networks it need to bypass the routers not supporting IPv6 multicast by establishing encapsulation tunnel (IPv6 in IPv6, IPv6 in IPv4 or GRE)… …The routing is done with MBGP or Static IPv6 multicast routes… …PIM-SMv2 and PIM-SSM which respectively require MLDv1 and MLDv2 are available, and global RP is localised on RENATER network… …For Interdomain multicast, there is no MSDP in IPv6 available, so for interdomain multicast, PIM-SM needs Embedded-RP which is under deployment for the moment… …Somes applications and services are available in IPv6 multicast, like DVTS, VIC/RAT, VideoLan, WMPlayer9 and every stack supports MLD… …To moniroting the IPv6 multicast service, connectivity and trafiic are supervising by ping and SNMP, routing is supervises with the AS-path-tree tool, and to supervise PIM/multicast topology, we use beacon or dbeacon tools. You can consult web page for more information about these points: !!! Classes de service et nouveaux usages de RAP

M6Bone : FM6bone Native links MBGP Tunnels Others (static – RIPng)
Here, you can see the French map of the M6Bone deployment : the fm6bone. French sites and networks are connected to the M6Bone by the fm6bone router of RENATER. MBGP enable network Classes de service et nouveaux usages de RAP

M6Bone : European map Native links MBGP Tunnels
Others (static – RIPng) MBGP enable network Here is a map of the M6Bone deployment in Europe. Classes de service et nouveaux usages de RAP

M6Bone : World map Native links MBGP Tunnels MBGP enable network
WIDE And here, you can see a world map of the M6bone, and you can note that WIDE is connected to the M6bone by RENATER with a MBGP peering in a IPv6-in-IPv4 tunnel. Native links MBGP Tunnels MBGP enable network Others (static – RIPng) Classes de service et nouveaux usages de RAP

Logical plan Tunnel IPv6-in-IPv4 Tunnel IPv6-in-IPv6 Peering MBGP
M6Bone PIM-SM/SSM, MBGP, MLDv1/v2 fm6bone router m6bone Router (RP) Tunnel IPv6-in-IPv4 Peering MBGP Tunnel IPv6-in-IPv6 Peering MBGP TEIN GEANT RENATER WIDE PIM-SM MBGP MLDv1 RAP Finally, you can see on this slide how are connected the sites to the M6Bone…. …RAP is interconnected with a MBGP peering (IPv6 multicast address familly) toward a tunnel encpsulating IPv6 multicast in IPv6 unicast and can provide to its sites the service natively with static IPv6 multicast routes or MBGP, but only PIM-SM is available for the moment… …Because UPMC is not IPv6 mutlicast ready, RAP provides to Saint-Antoine School of Medicine the service with the configuration of a VLAN from an IPv6 multicast capable router toward the classroom hosting the DVTS end-point system, MLDv1 and RTADVD protocols are activated on the router interface… …On the other side, WIDE and asian region are connected to the M6Bone by establishing a peering MBGP with the M6Bone global RP router. For purpose, a tunnel encapsulating IPv6 multicast in IPv4 unicast is established. This tunnel crosses TEIN2 and GEANT2…. Future evolutions should be a native connectivity in IPv6 multicast between RAP and RENATER, and between WIDE, TEIN2,GEANT2 and RENATER. Nevertheless, even in crossing tunnels, DVTS at 32Mbit/s works fine!! VLAN (MLDv1 + autoconf) UPMC AIT IPv6 multicast capable router Classes de service et nouveaux usages de RAP

Final goal of this project
Classes de service et nouveaux usages de RAP

DVTS tests and results on french side
UPMC : DVTS Sender is connected to RAP by a VLAN (MLDv1, rtadvd) RAP : IPv6-in-IPv6 tunnel MTU between RAP and RENATER is configured at 1280 Bytes : No possible change In IPv6 multicast, pMTU implementation fails on some equipments or isn’t available : Problem if packet > 1280 Bytes : Dropped by router because fragmentation should be made by the host using pMTU if necessary Adjusting of packets size to transmit by DVTS with DIF Block paremeter : By default : DIF Block = 17, packet size = 1360 Bytes In our case : DIF Block = 14, packet size = 1120 Bytes RENATER : ipv6 mfib cef output enabled : reduction of M6Bone router’s CPU charge After these adjustements : DVTS transmission OK!! It’s possible to increase tunnel MTU between RAP and RENATER by changing the tunnel end-point on RAP side DVTS Sender located situated on UPMC site is connected to RAP by a VLAN including MLDv1 and RTADVD protocols because UPMC is not IPv6 mutlicast ready. On the RAP side, MTU of the tunnel between RAP and RENATER is configured at 1280 Bytes and cannot be changed….6WINDGate 6200 routrers… …And, in IPv6 multicast, pMTU (path MTU discovery) implementation fails on some equipments or isn’t available, so if packet size is larger than 1280 Bytes, it is dropped by our router because fragmentation should be made by the host using pMTU… …But its possible to adjust packets size by configuring the number of DIF block tranmistted by DVTS. The default configuration puts 17 DIF block in a packet which results a packet size of 1360 Bytes, so it’s too large. To avoiding fragmentation, we can put 14 DIF block in each packet transmitted… On the RENATER side, Simon Muyal have encountered some problems with M6Bone router’s CPU charge, but that was solved by enabling « ipv6 mfib cef output » on the interfaces. And finally, after these adjustements, DVTS transmission works fine!!! Classes de service et nouveaux usages de RAP

Questions ? Thank you Jean-François Bertholon (UPMC school of medicine) Alain Carayon (USS Cambodia) Lionel David (RAP, UPMC) Dominique Hasboun (UPMC school of medicine) Kanchana Kanchanasut (AIT) Simon Muyal (RENATER) Jean-Francois Vibert (UPMC school of medicine) Classes de service et nouveaux usages de RAP

STIC-ASIA : Next Generation Internet for Medical Science Remote Classroom project IPv6 multicast on french side SOI Asia/AI3 joint Meeting 2006’ Spring.

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STIC-ASIA : Next Generation Internet for Medical Science Remote Classroom project IPv6 multicast on french side SOI Asia/AI3 joint Meeting 2006’ Spring.

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Presentation on theme: "STIC-ASIA : Next Generation Internet for Medical Science Remote Classroom project IPv6 multicast on french side SOI Asia/AI3 joint Meeting 2006’ Spring."— Presentation transcript:

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