networking for atsc 3 - society of broadcast engineers · networking for atsc 3.0 presentation...

36
Networking for ATSC 3.0 Part 1 Wayne M. Pecena, CPBE, CBNE Texas A&M University Educational Broadcast Services – KAMU TV & FM

Upload: others

Post on 24-Jun-2020

10 views

Category:

Documents


1 download

TRANSCRIPT

Page 1: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Networking for ATSC 3.0Part 1

Wayne M. Pecena, CPBE, CBNE

Texas A&M University

Educational Broadcast Services – KAMU TV & FM

Page 2: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Networking for ATSC 3.0Presentation Scope:ATSC 3.0 promises to revolutionize the television broadcast industry with integration of traditional over-the-air (OTA) signals and broadband delivered IP content. A key attribute of the ATSC 3.0 standard is the use of the Internet Protocol (IP) as the transport platform. The use of IP as a core transport platform creates the need for the broadcast engineer to have a high competency in networking technology to successfully design, build, and support the ATSC 3.0 infrastructure. This multi-part webinar series will provide a foundation in networking technology utilized in an ATSC 3.0 infrastructure.

Part 1 - Introduction to ATSC 3.0 station architecture, networking standards, and the physical layer.

Part 2 - Ethernet switching in depth to include network architecture design for performance and security by use of vlans to provide network traffic isolation.

Part 3 - IP routing, secure remote access, and security best practices to insure reliable system operation and ongoing support capability.

2

Page 3: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Networking for ATSC 3.0

Today’s Outline

▪ ATSC 3.0 Introduction & Brief System Architecture▪ The OSI Model, IEEE, IETF, & ATSC 3.0 Standards

▪ The Physical Layer▪ Closing Thoughts

3

Page 4: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Introduction

• Configurable, Scalable, Efficient, Interoperable, & Adaptable 1:

• Robust Mobile Reception (OFDM)

• Ultra High-Definition Video (4K, HDR, WCG, HFR)

• Immersive Audio (AC-4)

• Internet Protocol Transport Enabled (IP)

• Advanced Application Support• Emergency Alerting

• Terrestrial / Broadband Integration

• Interactive Applications

1 Rich Chernock, ATSC TG3 Chairman 4

Page 5: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

https://nabpilot.org/deploying-the-atsc-3-0-broadcast-ecosystem-v6-3/

IP

5

Page 6: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

ATSC 3.0 Shannon's Limit

6

Page 7: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

ATSC 3.0 PLP’s

6MHz

Channel

ATSC 3.0Transport

Stream

High Capacity4K UHD

Robust MobileReception

“PLP”

Physical

Layer

Pipes

7

PLP Config:- Modulation- Coding- Interleaving

Page 8: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

The OSI ModelOpen Systems Interconnection (OSI) ModelDeveloped by the International Organization for Standardization (ISO)A Conceptual Model – Abstract in Nature – Modular in Structure Provides “Layer Swapping” – Partitions Communications Function -Defines How Data Traverses From An Application to the Network

Networking

Focus

8

Page 9: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Open Systems Interconnection “OSI” Model

Application

Session

Presentation

Transport

Physical

Data Link

Network

7

5

6

4

1

2

3

User Application Interaction

Tracks User Sessions

Inter-Host Communications

Standardizes Data Encoding/Decoding/

Compression/Encryption

Manages End-End Connections:

TCP, UDP, & Flow Control

Interfaces to Physical Network, Moves Bits Onto &

Off Network Medium

Provides Network Access Control, Physical

Address (MAC), & Error Detection

Provides Internetwork Routing (path)

Provides Virtual Addressing (IP)

9

Page 10: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Standards

• IEEE- Institute of Electrical & Electronic Engineers

• Project 802 Ethernet Standards:

• 802.1 Bridging

• 802.3 Ethernet

• 802.11 Wireless

http://standards.ieee.org/about/get/

https://www.atsc.org/

10

Page 11: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Layer 2 Standards:IEEE- Institute of Electrical & Electronic Engineers

• Project 802Ethernet Standards:

• 802.1 Bridging

• 802.3 Ethernet

• 802.11 Wireless http://standards.ieee.org/about/get/

11

Page 12: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Layer 3 Standards:IETF – Internet Engineering Task Force

• Request for Comments – RFC’s

• The “Standards Bible” of the Internet

• Used to Explain All Aspects of IP Networking

• Nomenclature “RFC xxxx”

• Requirement Levels:

• Required

• Recommended

• Elective

• Limited Use

• Not Recommended

www.rfc-editor.org/rfc.html

12

Page 13: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

ATSC 3.0 Standards

https://www.atsc.org/standards/atsc-3-0-standards/13

Page 14: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

ATSC 3.0 Infrastructure

14

Page 15: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Network Models & ATSC 3.0 Layer Architecture

InternetProtocolData-Flow

Layers

15

Page 16: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

My Simplified ATSC 3.0 Station

HEVC EncodersDASH Encoders

HEVC EncodersDASH Encoders

Route / Signaling ServerBroadcast Gateway

STLEthernet Radio

Fiber

ATSC 3.0Exciter

Transmitter

SDI / IPSource

SDI / IPSource

IP

IPIP

IP

IP

IP

IP

16

Page 17: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Actual ATSC 3.0 Station

HEVC EncodersDASH Encoders

HEVC EncodersDASH Encoders

Route / Signaling Server

Broadcast Gateway

STL - Ethernet RadioATSC 3.0Exciter

Transmitter

SDI / IPSource

SDI / IPSource

STL - FiberIP Connected Devices

VLAN(s)

Ethernet Switch

Ethernet Switch

17

Use VLAN(s) to Segment Traffic:- Performance- Security

Page 18: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

The Physical Network

18

Page 19: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Ethernet Beginnings

• Conceptually Based Upon “ALOHA NET”

• Developed as a “Wireless” Network byNorman Abramson & colleagues

• Deployed at the University of Hawaii in 1971

• Later Refined at Xerox PARC in 1973

• Bob Metcalf & David Boggs “Fathers of Ethernet”

• More Ethernet History:

http://ethernethistory.typepad.com/

19

Page 20: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Ethernet Media Evolution

Thicknet Vampire

Tap

Thinnet

Topology Also Migrates from “Bus” to “Star” Based

20

Page 21: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Too Many Types of Ethernet

21

Page 22: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Ethernet Standards

22

Page 23: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Ethernet SFP Transceivers“Single Form-factor Pluggable” – SFP / SFP+ / XFP (mini GBIC)

Transceiver - LC Fiber Connector

Copper or Optical Based Transceiver to Provide Flexible

Physical Interface

23

Page 24: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Multi-Mode vs Single Mode Fiber

• Multi-Mode• Larger core – gather

more light

• Short Distance (100m)

• Typical - 850 nm

• Cheaper $

• Single Mode• Smaller core – tight mfg.

tolerances

• High BW – Long Distance (100 km)

• Typical 1310 / 1550 nm

• More Expensive $$

24

Page 25: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

• Data SFP Transceiver (1 Gbps)

• 1000-Base-T

• SX series

• LX series

• EX series

• ZX series

• And others……

• Video SFP Transceiver (SDI SFP)

• 3G-SDI

• 6G-SDI

• 12G-SDI

HD-BNC / micro BNC25

Page 26: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Video SFPConfigs

26http://photonicslink.net/en/index.asp

Page 27: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

SFP DDM (Digital Diagnostics Monitoring)

• DOM – Digital Optical Monitoring• Output Power

• Input Power

• Laser Current

• Laser Temperature

• Supply Voltage

• Alarm Conditions

27

Page 28: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Optical GuidelinesExample Loss Budget – Actual Levels Dependent Upon Specific Optical TX & RX Devices

Optical

TX

Optical

RX

Launch Power Receive Power

Fiber Optic

Patch Panel

Fiber Optic

Patch Panel

FO

Jumper

FO

Jumper

System Loss

-3 to -9 dB -9 to -19 dB

1.0 dB / km – 1310nm MM

0.5 dB / km – 1310nm SM

0.3 dB / connector0.3 dB / connector

-6 Ideal -14 dB

Too Much RX Power

Can Be Detrimental As

Not Enough - Attenuate

28

Page 29: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

SFP Color Coding (ODM wavelength)

29

TX

RX

Bale Color

Page 30: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Twisted-Pair Installation Practices

• Follow Industry “Best-Practices”

• Twisted-Pair Ethernet @ High Speeds• AC Placement / Separation

• Bundling

• Bend / Knots / Pull Strength

• Maximum Length

• Fiber Optic Cabling• Bundling

• Bend Radius / Pull Strength

• Length (optical attenuation)

• Connector Installation

30

https://www.ctctechnologies.com/wp-content/uploads/2017/04/Network-Cabling-Design-Best-Practices.pdf

Page 31: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Networking for ATSC 3.0Presentation Scope:ATSC 3.0 promises to revolutionize the television broadcast industry with integration of traditional over-the-air (OTA) signals and broadband delivered IP content. A key attribute of the ATSC 3.0 standard is the use of the Internet Protocol (IP) as the transport platform. The use of IP as a core transport platform creates the need for the broadcast engineer to have a high competency in networking technology to successfully design, build, and support the ATSC 3.0 infrastructure. This multi-part webinar series will provide a foundation in networking technology utilized in an ATSC 3.0 infrastructure.

Part 2 - Ethernet switching in depth to include network architecture design for performance and security by use of vlans to provide network traffic isolation. June 26, 2019

Part 3 - IP routing, secure remote access, and security best practices to insure reliable system operation and ongoing support capability. July 24, 2019

31

Page 32: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Learning More About ATSC 3.0

32

Page 33: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

References:

33

Page 34: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

References:

https://www.atsc.org/standards/atsc-3-0-standards/34

Page 35: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Closing Thoughts

• Use of the Internet Protocol Brings Unique Features to ATSC 3.0

• Flexible & Scalable Transmission System

• Enhanced Emergency Alerting

• Enables Terrestrial / Broadband Integration

• Provides Interactive Application Support

• The Internet Protocol (IP) Is The Key to Terrestrial & Broadband Integration

• Networking Knowledge is Essential for the Broadcast Engineer

• Follow the OSI Model Data-Flow Layers – Focus Upon:

• Physical Layer – Know Ethernet In-Depth

• Understand Ethernet Switching – VLAN Implementation

• Know the Internet Protocol - IP Multicasting

35

Page 36: Networking for ATSC 3 - Society of Broadcast Engineers · Networking for ATSC 3.0 Presentation Scope: ATSC 3.0 promises to revolutionize the television broadcast industry with integration

Distinguished Lecturer

Vice President, National Board of Directors

Executive Committee Member

Chair, Education Committee

Wayne M. Pecena

Texas A&M University

[email protected]

[email protected]

979.845.5662