Upload File

internet hdtv terry gray university of washington [email protected] terry gray university of...

27
Internet HDTV Terry Gray University of Washington [email protected]

Post on 19-Dec-2015

223 views

Category:

Documents


2 download

Report

TRANSCRIPT

Page 1: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Internet HDTVTerry Gray

University of Washington

[email protected]

Terry Gray

University of Washington

[email protected]

Page 2: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

The ResearchChannel• Formerly known as ResearchTV• Distribution of HQ R&E videos• Nationwide broadcast via Echostar• Network distribution via Internet2

– On-demand and scheduled– Interested in HD and multicast– Good QoS case study candidate!

• Participation and content welcome!

Page 3: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

UW’s Internet HDTV Project

• How would world change if it worked?– Support ResearchChannel objectives– Support Internet2 objectives– Support our normal urge to push limits

• Interdisciplinary team from UW central computing organization

• Support from Sony, others

• Focus on studio quality HDTV and broadcast industry standards...

Page 4: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Chronology

• Feb 99: Abilene roll-out (6 Mbps SDTV)

• Jul 99: HD/IP project kickoff

• Oct 99: I2 (Stanford to Seattle via Abilene)

• Nov 99: SC99 (Seattle to Portland via NTON)

• Feb 00: ISIe-UW (DC to Seattle via HSCC)

• Apr 00: NAB (Seattle to Las Vegas via Enron)

Page 5: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

HDTV Basics

• Movie-like images– 16x9 aspect ratio, all digital, rich color sampling

• Many different flavors– p vs. i, lines of resolution, sampling depth, etc.

• “1080i” = 1920x1080 @ 60 interlaced fields/sec• Quality levels:

– consumer = 19.2Mbps– contributor = 40Mbps– studio = 200Mbps– raw = 1.5Gbps

Page 6: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Video Data Rates

1.5Gbps Raw HDTV

270Mbps Uncompressed SDTV (SDI)

200Mbps HDCAM Compressed HDTV

40Mbps MPEG2 HDTV Contribution

19.2Mbps HDTV Broadcast

Page 7: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

HD/IP Block Diagram

VTR

HDCAMCompression SDTI

WorkstationGbE

HDTVDisplay

HDCAM De-CompressionSDTI

WorkstationGbE

Page 8: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

UW’s HD/IP Software

• Two different projects:– 40Mbps MPEG2-DVBASI

• ~900B UDP datagrams• RAID-style FEC; low latency• Loss tolerance depends on decoder (5-10%)

– 200Mbps HDCAM-SDTI• 1472B UDP datagrams• retransmit and buffering; 4 sec latency• Loss tolerance: 10-15%

• Using standard 1500 byte GigE MTU• Not using RTP at this time

Page 9: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

UW Network Environment

• Pacific/NorthWest Gigapop– Abilene OC48– HSCC OC48– Commodity 4x DS3, 1xOC3

• Campus: separate GE R&D backbone

• Frame-based; no ATM

Page 10: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Experiment 1: Fall I2 Mtg

• Stanford to UW/Seattle via Abilene OC12– 40Mbps MPEG2-DVBASI stream– 200Mbps HDCAM-SDTI stream

• Approximately 12 network hops– Stanford, CALREN, Abilene, P/NWGP, UW

• Sony provided an HDTV ‘movie projector’

• Jay Leno, Secret Adventures of Jules Verne

Page 11: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu
Page 12: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Abilene - afternoon of UW event (2 hour average)

Page 13: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Experiment 2: SC99 GNAP Demo

• UW/Seattle to Portland via NTON OC48• Five concurrent 200Mbit streams 1+ Gbps

• 4 streams sourced from disk arrays

• 1 stream sourced from Sony HDTV system (live and tape)

• All streams displayed concurrently at SC99

• Link shared with MSR desktop Gbps TCP demo• 2.4Gbps sustained; 54.7 Terabytes in 90 hours!• Overall packet loss observed: 10-4 - 10-5

• predominantly at application and system layers

Page 14: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

SC99 GNAP Booth15-18 November, 1999

Portland, Oregon

Page 15: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu
Page 16: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

SC99 Flows

Page 17: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Experiment 3: ISIe/UW

• ISI/DC to UW/Seattle via HSCC OC48

• Single GE router attachment:– 200mbps HD + 700mbps chaff = 900 total– >700 chaff: high LOCAL loss– <700 chaff: low loss (.0005%)

• Dual GE router attachment:– 5x200 HD/IP streams– Peak transfers > 2gbps

Page 18: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

ISIe to UW Flows

Page 19: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

HSCC iperf UDP tests

• UW->ISIe:– 100-475 Mbps consistent 0.03% loss

• ISIe->UW:– 100 Mbps <0.003%– 200 Mbps 0.03%– 400 Mbps 0.2%– 600 Mbps 0.2%

Page 20: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Experiment 4: NAB

• First-ever HD news production via Internet

• Five HDCAM feeds from KING-TV to NAB

• Two more from UW to NAB

• HD production/switching at Sony booth

• Resulting production sent back to KING-TV

• Broadcast over KING’s HD channel

• First-ever HD “ENG” via Internet

Page 21: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu
Page 22: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu
Page 23: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu
Page 24: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Next Steps

• Pushing the system: uncompressed HDTV, multi-stream servers

• Studying the system: understanding the bottlenecks, exploring latency vs. quality

• Scaling the system: QoS, multicast, different data rates, VBR encoding

• Using the system: TV production, visualization, medicine, teleconferencing

Page 25: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

QoS Issues

• Limits of application error correction

• TCP v. UDP issues

• Impact of CBR vs. VBR encoding

• Impact of DiffServ

• Impact of MPLS and DWDM

• Impact of Multicast

Page 26: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

Conclusions

• Studio HDTV to your home is NOT imminent

• Studio HD/IP is viable, without dedicated links

• Gbps flows are sustainable in the I2/NGI space

• Gigabit networking and e2e performance are NOT solved problems (especially for TCP)

• Network ops: Be very afraid & go to SNMPv3• SNMPv1 counters wrap every 13seconds at OC-48c

Page 27: Internet HDTV Terry Gray University of Washington gray@washington.edu Terry Gray University of Washington gray@washington.edu

References

• ResearchTV/ResearchChannel www.washington.edu/researchtv

• Internet HDTV project www.washington.edu/hdtv

• Enterprise QoS Survival Guide staff.washington.edu/gray/papers

• Gigabit Networking & Applications Partnership - GNAP: UW, Sony, ResearchTV, P/NW Gigapop, Microsoft,

NCSA/Alliance/NLANR, NTONC, DARPA

• Additional help from: Stanford U, Juniper Networks, Qwest, U S WEST, Nortel, GST, Alcatel/Packet Engines, Alteon, SysKonnect, SC99, Oregon State U, Sandia-Livermore, ISIe, UCAID, Enron, ELI


University of WashingtonComputing & Communications Firewalls for Open Networks Terry Gray Director, Networks & Distributed Computing University of Washington

Gray @ Nortel 20 April 1999 Scaleable Computing Jim Gray Microsoft Research [email protected] Gray/talks/ [email protected]

November 24, 2015 (XXXI:13) Terry Gilliam THE I D P (2009, …csac.buffalo.edu/imaginarium.pdf · November 24, 2015 (XXXI:13) Terry Gilliam, ... Tom Waits…Mr. Nick Mackenzie Gray

1 University of WashingtonComputing & Communications The Indeterminate Internet Denial isn’t just a river… Terry Gray University of Washington Reconnections

UW meets the Cloud U-TAC Briefings: February: Strategic issues & choices March: 2009 objectives Terry Gray, PhD Associate Vice President, University Technology

terry and terry Brochure

University of WashingtonComputing & Communications Network Security Principles & Practice for UW Medicine Terry Gray April 2004

Sponsored Research Agreement Template - washington.edu€¦  · Web viewSPONSORED RESEARCH AGREEMENTbetweenThe University of Washingtonand_____ This Sponsored Research Agreement

BR300073 · 2020. 12. 10. · Gray sandstone, red rock Red rock, 'gray sandstone Gray sandstone • Bine rock Red rock Red rock Red rock Red rock Gray rock Gray rock Gray rock. Gray

Por: Terry & Terry Arquitectura

Http:// SIMPLIFYING THE CLOUD – the case for federation Dr. Terry Gray Assoc VP, Technology Strategy University

University of WashingtonComputing & Communications WIRELESS NETWORKING Terry Gray, Scott Mah, David Richardson, Marc Hudson UW Computing & Communications

MarcEdit: Doing more, but faster Terry Reese Gray Family Chair for Innovative Library Services [email protected]

Cloud Computing 101 Terry Gray, PhD Associate Vice President, University Technology Strategy & Chief Technology Architect University of Washington February

Sonny Terry Sonny Terry

The Story Behind UW's Cloud Computing Initiative Terry Gray, PhD Associate VP, Technology Strategy UW Technology Cloud Seeding

Jim DeRoest Director, e-Science Initiatives Pacific Northwest Gigapop Director, Technology Initiatives ResearchChannel, U Washington [email protected]

CELEBRATING 77 YEARS...COMMUNICATIONS TEAM Jack Hass, Social Media Coordinator Terry Gray, Website Resource Coordinator David Fisher, Events Calendar Coordinator Randy Isaac, Director

University of WashingtonComputing & Communications CAMPUS NETWORK DESIGN: Wired vs. Wireless Terry Gray Director, Networks & Distributed Computing UW Computing

Rhode Island Department of Environmental Management Office of Waste Management (OWM) Cynthia Gianfrancesco 222-4700 X7126 Terry Gray X2405

Safety Man Movement by Terry Gray - VPPPA, Inc. · HUNTINGTON INGALLS INDUSTRIES PROPRIETARY Safety Man Movement System August, 2017 Terry D. Gray Newport News Shipbuilding Environmental

CSE588: Network Systems Terry Gray* Director, Networks & Distributed Computing Affiliate Professor, Computer Science & Engineering University of Washington

EDITING RECORDS WITH THE MARCEDITORkslibassoc.org/2012Conf/handouts/marceditsession_three.pdfEDITING RECORDS WITH THE MARCEDITOR Terry Reese Gray Family Chair for Innovative Library

Internet HDTV and the ResearchTV Project Terry Gray University of Washington

1 State of the Network 1 May 2007 Computing Support Meeting Terry Gray Assoc VP, Technology & Architecture C&C

COLLABORATION & COMPLIANCE Identity Management meets Risk Management Policy Physics meets Unintended Consequences Terry Gray, PhD Chief Technology Architect

Http:// Stepping into the Cloud Risks, Rewards, Realities Terry Gray, PhD Assoc VP, Technology Strategy UW Technology

Uw network security 2003 Terry Gray University of Washington Computing & Communications 17 October 2003

1 University of WashingtonComputing & Communications Backgrounder for Policy Discussions on Wireless Terry Gray Director, Networks & Distributed Computing

Far Northeast Livability Study - | mpdc · 2013-04-03 · Far Northeast Livability Study Livability Action Agenda for Far Northeast October 2011 Vincent C. Gray, Mayor Terry Bellamy,

QoS Reality Check “Be careful what you ask for” Terry Gray University of Washington 5 May 1999 -- NWACC

1 University of WashingtonComputing & Communications security in the post-Internet era Terry Gray C&C all-hands meeting 09 March 2004

UW meets the Cloud Strategic issues & choices: lifting the fog around our institutional role Terry Gray, PhD Associate Vice President, University Technology

University of WashingtonComputing & Communications STATE OF THE NETWORK Terry Gray Director, Networks & Distributed Computing UW Computing & Communications

Consolidated endowment Fund RepoRtf2.washington.edu/treasury/cef.annual.report/sites/... · 16 gENErAL INFOrMATION CONTENTS Consolidated endowment Fund RepoRt 2013. uw tReasuRY oFFiCe