videoconference at cern joao fernandes cern-it-uds video services
TRANSCRIPT
![Page 1: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/1.jpg)
Videoconference at CERN
Joao FernandesCERN-IT-UDS
Video Services
![Page 2: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/2.jpg)
CERN
CERN– 2500 employees on 2 sites (CH-F)– More than 9000 users
Videoconference use cases:– 95% of meetings from 8h30 to 20h30 Geneva time:
• LHC experiments: collaborations of ~2000 people worldwide spread
– High-level communications between institutes worldwide• Permanent video links between Europe and US
– Special events • Conferences, Commemorations, Outreach activities…
– Job Interviews
Scale– 2000 VC meetings/month (CERN, 160+ Institutes in 37
countries)– 4500 VC connections/month (Desktops, Room systems and
Telephone)
![Page 3: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/3.jpg)
CERN videoconference venues
35 equipped rooms (8 in project) All reequipped between 2007 and 2008 Global project along 3 main lines:
– Homogeneity of interfaces– System reliability– Remote Administration/Support
Various sizes and configurations– From 6 people (small meeting rooms) to 100 + people (amphitheatres)
All Equipped with H.323/SIP compliant equipment
![Page 4: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/4.jpg)
CERN videoconference Services
EVO (provided by Caltech)– Widely used in the LHC (75% of sessions)– http://evo.caltech.edu– Access from
• Equipped meeting rooms (H.323-compatible)• Offices (desktops/laptops)
– JWS (Java Web start) application– Multiplatform (windows, Mac, Linux)
– Integrates• Recording system• Chat• Presence detection
– Scale• hundreds of participants (peak currently at 212 participants
in the same session)
![Page 5: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/5.jpg)
![Page 6: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/6.jpg)
CERN videoconference Services
H.323-based Videoconference– Industry Standard– Point to point (direct connection from one endpoint to the
other)– MCU (multipoint control units) – expensive hardware units on
which the H.323 endpoints can connect for meetings with more than 2 sites
• Embedded small MCUs in VC codecs (<5 sites)• MCU services
– CERN (in operation since 2009)– EsNet in the USA– RMS in France– DFN in Germany
– Scale:• Limited by the number of ports (usual average of 10 to 20
sites per meeting)
![Page 7: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/7.jpg)
Use Case Examples
95% remote sessions– 8h00-21h00 (Geneva time) – LHC Experiments
• Working groups worldwide spread• Experiment Weekly Status update
• More than 300+ participants combined (videoconference and webcast)
![Page 8: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/8.jpg)
Use Case Examples
Permanent Video Communications with “constant presence” between several centers
• Europe, US, Asia and Oceania– Remote Shifts– Monitoring– High Definition systems
• Quality of Presence is an important requirement
Chicago, US
Control Center CMS (DESY, Hamburg)CMS Control Center (CERN)
![Page 9: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/9.jpg)
Use Case Examples
Outreach Activities– Masterclasses (students from several parts of the world join in
VC): • once per year, during 3 weeks
– 6 institutes per day (of a total of 90)
![Page 10: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/10.jpg)
Stats of Usage
CERN + 160 Institutes in 37 countries
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
0
500
1000
1500
2000
2500
2008
2009
2010
![Page 11: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/11.jpg)
Stats of Usage
4500 unique connections (H.323 devices, Laptops/Desktops and phone
Jan Fev Mar Apr May Jun Jul Aug Sep Oct Nov Dec
0
1000
2000
3000
4000
5000
6000
2008
2009
2010
![Page 12: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/12.jpg)
Remote Administration
Centralized H.323 endpoints manager: TMS (Tandberg Management Suite)– Usage statistics– Diagnostics and Alarms– Software update
Projectors with IP connections– Ex. at CERN: EPSON EMP-83, ProjectionDesign– Diagnostics– Remaining lamp hours– Remote management interface (mostly to switch off the device
at the end of the day, and switch it on when preparing a session)
CERN Management Framework (CMF) for automated PC management– SW updates, Central Configurations
![Page 13: Videoconference at CERN Joao Fernandes CERN-IT-UDS Video Services](https://reader036.vdocuments.site/reader036/viewer/2022062314/56649e805503460f94b845d4/html5/thumbnails/13.jpg)
Remote Support
At CERN the VC support has been outsourced– Provided by the computing helpdesk– Mostly done remotely
• Startup sessions• Monitoring• Debugging
– Only the 3rd line is done by CERN staff
Remote support done by– Phone– Videoconference (operators’ desk equipped for it)– Netcams in the rooms– VNC installed on room PCs