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Firing Up DVTS over IPv6

Firing Up DVTS over IPv6. Bill Cerveny. What is DVTS?. “Digital Video over IP” Videoconferencing over IPv6 or IPv4 with preference for IPv6 A product of the Wide Project http://www.sfc.wide.ad.jp/DVTS/. Operating Systems Supported. FreeBSD NetBSD Linux

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Firing Up DVTS over IPv6

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  1. Firing Up DVTS over IPv6 Bill Cerveny

  2. What is DVTS? • “Digital Video over IP” • Videoconferencing over IPv6 or IPv4 with preference for IPv6 • A product of the Wide Project • http://www.sfc.wide.ad.jp/DVTS/

  3. Operating Systems Supported • FreeBSD • NetBSD • Linux • Windows 2000 and Windows XP (IPv4 only as of Jan 10, 2002) • MacOS X -- incomplete; IPv4 seems to work; IPv6 stuff incomplete

  4. Tested Operating System Environments • Linux • Must use specific Linux kernel and configuration • Used Debian Linux, but any Linux variant should be OK • Firewire configuration on desktop easy, but challenging on laptop PC • Once working, everything looked obvious • Gory details at end of presentation

  5. Tested Operating System Environments • MacOS X • Wasn’t able to build without significant modification; port incomplete

  6. DV Camcorder DV Camcorder Desktop or Laptop PC Desktop or Laptop PC Tested Configuration This shows video/audio flow Going one direction only. For Both directions, duplicate this Going in opposite direction. Firewire Link 15-30Mbps IPv6 Abilene 15-30Mbps IPv6 SVGA or Composite Video Video Content Firewire Link

  7. Network Traffic Generated • By default, 32Mbps IPv6 or IPv4 traffic is generated in each direction (30 frames per second) • Can reduce frame rate to 15 frames per second to reduce bandwidth to about 16Mbps without noticable degradation in video performance

  8. Bandwidth Stats from Test Between Chicago and Armonk, NY • Abilene (mix of IPv4 and IPv6 traffic)

  9. Bandwidth Stats from Test Between Chicago and Armonk, NY • Armonk IPv6 Router Stats - FastEthernet Interface Armonk, NY IPv6 Router Stats - Tunnel

  10. Cost of DVTS -- Wide Estimate

  11. DVTS Cost - My Experience

  12. References • DVTS Main Page - http://www.sfc.wide.ad.jp/DVTS/ • DVTS Presentation to Internet2 IPv6 Workshop in Los Angeles - http://www.toyabe.net/I2-presentation.ppt

  13. Linux Configuration Notes • Configured on Debian Linux, 2.4.12 kernel. • Turned on IEEE1394 (and IPv6) support in Linux kernel • DVTS source code looks for IEEE1394 kernel source code at /usr/src/linux/drivers/ieee1394 • Must install libraw1394 libraries

  14. Kernel configuration - 1 of 3Turning on “Experimental” Code

  15. Kernel configuration 2 of 3Enabling IPv6

  16. Kernel configuration 3 of 3IEEE1394 Options

  17. Personal Linux/Hardware Compatibility Notes • What works: • IBM Thinkpad T21 and 600E • Western Digital IEEE1394 Cardbus card (WDAD0003-RNW) • Sony DCR-PC9 Camcorder (also DCR-PC3 and DCR-PC7) • Sony A/D Converter • Dell 400Mhz GX1 • Pinnacle PCI IEEE1394 card • Orange Micro IEEE1394/USB PCI card (USB not tested) • Siig PCI card • All Firewire devices listed above

  18. Personal Hardware Compatibility Notes • Doesn’t work: • Siig 2-port Cardbus card (NN-PC2012) • Dazzle Hollywood A/D Bridge

  19. Warnings • Don’t try to use ohci1394 stuff in pcmcia-cs source code -- it doesn’t work and developers don’t intend to fix it (I wasted a lot of time troubleshooting it, before I gave up) • If you are using a Cardbus IEEE1394 card and Linux freezes, you must remark some ohci1394 initialization code (this seems to be a laptop memory problem)

  20. Final Note about DVTS (IMHO) • You have to get past source code and hardware configuration problems, but once you do this, DVTS seems easy and straightforward.

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