Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 1 IP Videoconferencing on JANET Internet2 International Task Force Internet2 Member meeting 27 th October 2002

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 2 Report: David Salmon UKERNA Slides: Roger Bolam Video Development Engineer UKERNA

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 3 Background to JANET Videoconferencing IP Videoconferencing Pilot Service Components and Capabilities Outline

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 4 Mid to late 90’s –High quality studio based service over ATM network –Limited number of sites Centralised videoconferencing service to community for five years –Mix of ISDN and ATM technologies History of Videoconferencing Services on JANET

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 5 Plenty of SuperJANET4 capacity –Initially 2.5Gb/s, now 10Gb/s backbone ATM Closure of Scottish MANs Videoconferencing Network (SMVCN) Welsh Video Network developments –90 studios now equipped and operational A requirement from our community Drivers for IP Videoconferencing Service

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 6 H.323 Architecture Group –Report and recommendations Budget approval –EU Procurement for centralised service components Pilot Activities – Welsh Video Network Recent IP Videoconferencing Work

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 7 Service aimed at all organisations with direct connections to JANET –800+ HE, FE & Research Council Open to all endpoints subject to passing a QA test –“Endpoints” are mostly VC studios –“Desktops” can apply to register Service target

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 8 Centralised Service MCUs, Gateways and Gatekeepers Equipment located in Core Points of Presence (CPoPs) and on JANET Conference Booking System Management and advisory service Security and resilience Service Architecture

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 9

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 10 Two Accord MGC 100 MCUs International Gatekeepers (Cisco MCM) National Gatekeepers (Cisco MCM) MCU Gatekeepers (Cisco MCM) Results of Procurement

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 11 Can support: –48 IP 2 Mbit/s IP –64 384k ISDN Full Gateway capabilities between IP and ISDN Full inter-operation between different audio and video protocols - real time trans-coding Accord MGC 100 MCU/Gateway

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 12 Three levels of Gatekeeper: –International (resilient) –National (resilient) –Site –supports Global Dialling Scheme Collaborative effort –European NRNs and ViDeNet adopting same Gatekeeper Hierarchy and Global Dialling Scheme Service Gatekeeper Hierarchy

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 13 CODECs capable of initiating calls at speeds between 384kbit/s & 2 Mbit/s IP Implement a local gatekeeper –can register with centralised JANET site gatekeeper(s) –Interim measure Proxy server or H.323 aware firewall for security Suitably provisioned JANET Access ( i.e. enough bandwidth –Force a full-duplex ethernet LAN infrastructure: auto- negotiation does not work JANET recommendations to sites

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 14 Institution Firewall H.323 Gatekeeper/Proxy Cisco Multimedia Conference Manager (MCM) 366x

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 15 Sites must be fully QA tested Separate QA Testing for IP and ISDN Sites must be registered with a gatekeeper Conferences must be booked using the JANET Booking System Site Service Usage Requirements

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 16 Service Management Central management service Booking system operation and development Conference scheduling and equipment configuration QA testing service Advice and consultancy service for the community

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 17 QA Tests to check all registered sites. –Mix of objective & subjective AV quality checks Initiated with the ISDN video service –Made a big difference as quality improved during the service roll-out Audio and Video can be compared to standard benchmarks Tests include: echo cancellation quality, ambient noise levels, line noise, audio levels, video jitter, video pixellation QA Testing

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 18 QA testing - 2 Repeated every 6 months or so –Systems which pass remain registered –Systems which fail Advice offered by testers Deeper problems/issues passed to VTAS consultancy service for investigation Users can provide anonymous feedback –Identify poor sites and trigger QA tests

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 19 Developed in-house for ISDN/ATM service System has been further developed to add IP bookings. –Some 300 sites registered –Approximately 90% are “studios” Automated booking – manual resource scheduling checks and configuration Aim for more automated resource scheduling in future –Accommodate Ad-hoc bookings –Currently needs ~24hours notice JANET Videoconferencing Booking System

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 20 Contract was placed for major service components 14 th June 2002 Pilot started September 2002 Full Service 2003 Timescales

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 21 Real time applications benefit from QoS UKERNA QoS project Prototyping QoS mechanisms on JANET IP Premium using Diff Serv EF QoS must to be End to End Quality of Service

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 22 VIP Project H.323 Architecture Group Report Pilot Information ement/html Further Information

Overview of JANET IP Videoconferencing 27 th October 2002IP VC on JANETSlide 23 Roger Bolam Video Development Engineer UKERNA Contact Details for Further Information