1 / 22

Telecommunications Industry Association TR-30.3/10-04-013 April 26-27, 2009

Telecommunications Industry Association TR-30.3/10-04-013 April 26-27, 2009. Over-the-Top Video Transport. Les Wu April 2010. 1. P2P Captures. P2P Capture Comparisons. Contributed p2p. Contributed p2p (15s integration). Voice Traffic. 2. TCP Delivery.

fallon
Download Presentation

Telecommunications Industry Association TR-30.3/10-04-013 April 26-27, 2009

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Telecommunications Industry Association TR-30.3/10-04-013 April 26-27, 2009

  2. Over-the-Top Video Transport Les Wu April 2010

  3. 1 P2P Captures

  4. P2P Capture Comparisons

  5. Contributed p2p

  6. Contributed p2p (15s integration)

  7. Voice Traffic

  8. 2 TCP Delivery

  9. Bandwidth Utilization from TIA Model

  10. Identical YT-HD Views (5s average) • 8-min HD view of Shuttle Landing • Run twice from home and once from lab

  11. RTMP Capture – Out of the Box

  12. Network Utilization of NBCU Olympics Clip • 1s bandwidth averaging from the wireshark capture • TCP based transport • Bandwidth utilization appears greedy • Initial bandwidth spike of 27.7 Mbit! • Avg bitrate of 2.4Mbit has much higher excursions

  13. 3 Silverlight Lab Experiments

  14. Silverlight Lab Capture Scenario • Big Buck Bunny Encoded via MS Expression Encoder 1080p standard profile • VC-1, 10 bitrates from 230k up to 6Mbit • Pristine 1GB Lab Network • Unconstrained, 10Mbit, 6.5Mbit, 4.5Mbit Policing with Aune Box • Policing done with a 250,000 byte Commited Burst Size (CBS) Buffer • Results: • Protocol appears greedy with massive bandwidth spikes • Even though 6Mbit claimed available, Silverlight did not appear to actually stream to that rate delivering 2-3 Mbit video!

  15. Unconstrained

  16. Constrained 10 Mbit

  17. Constrained 6.5 Mbit

  18. Constrained 4.5Mbit

  19. Comparisons • Yellow: Streaming Bitrate • Green: Frame Rate • Red/Blue: Video Bitirate Ideal 10 Mbit 6.5 Mbit 4.5 Mbit

  20. Silverlight Bandwidth Utilization (1s Averaging)

  21. Silverlight Bandwidth Utilization (1s Averaging) – Detailed View

  22. 15s Bandwidth Averaging

More Related