Migration of broadcasting to next generation networks
This presentation is the property of its rightful owner.
Sponsored Links
1 / 21

Migration Of Broadcasting to Next Generation Networks PowerPoint PPT Presentation


  • 97 Views
  • Uploaded on
  • Presentation posted in: General

Migration Of Broadcasting to Next Generation Networks. Presented by: Motty Anavi VP of Business Development. Agenda. Challenges in migrating to Next Generation networks Technology enablers Standards Applications Summary. Traditional Broadcast Telco Use. ISDN.

Download Presentation

Migration Of Broadcasting to Next Generation Networks

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Migration of broadcasting to next generation networks

Migration Of Broadcasting to Next Generation Networks

Presented by:

Motty Anavi

VP of Business Development


Agenda

Agenda

  • Challenges in migrating to Next Generation networks

  • Technology enablers

  • Standards

  • Applications

  • Summary


Traditional broadcast telco use

Traditional Broadcast Telco Use

ISDN

  • Broadcast is encoded digitally

  • Transferred via either:

    • Digital telco transmission line

    • Built-in modem to POTS line

ISDN

CODEC

CODEC

TDM Network

T1

T1

POTS

POTS


Changes in telco services

Changes in Telco Services

  • Availability of traditional services is diminishing

    • ISDN almost completely eliminated

    • Many POTS lines are converted to VoIP

  • Availability of Next Generation networks is increasing dramatically

  • Vendors are MD-ing TDM products

  • New CODECs come in IP versions


The changing landscape

The Changing Landscape

  • How can EXISTING broadcast equipment be maintained using the new PSN?

?

?

ISDN

ISDN

TDM Network

PSN Network

CODEC

?

CODEC

?

T1

T1

?

?

POTS

POTS


What is pseudowire pw

What is Pseudowire (PW)?

  • Pseudo = Simulated, Seemingly

  • Emulation of a native service over a Packet Switched Network (PSN)

  • The native services can be ATM, TDM, Frame Relay or ETH, while the PSN can be ETH, IP or MPLS

  • Supports voice, data and video

  • Provides a transparent tunnel through the PSN

  • Provides clock distribution and synchronization over PSN


What is a pseudowire pw

What is a Pseudowire (PW)?

PSN Network

ATM VCC

ATM VCC

PW Gateway

PW Gateway

HDLC

HDLC

TDM

TDM


Pw switching ip eth

VCC/T1

PW-Label

PW-Label

IP Header

VCC/T1

IP Header

VCC/T1

PW-Label

PW Switching- IP/ETH

Switching is done according to the IP addresses

1.User services are mapped to PW

PW-Label

VCC/T1

2. IP headers added

T1-TDM

T1-TDM

PW Gateway

PW Gateway

VCC

VCC

IP/ETH Network

ETH

ETH

VCC

VCC

3. The IP Header is stripped

4. PW label mapped back to user services


Pw switching mpls eth

VCC/T1

PW-Label

VCC/T1

PW-Label

PW Switching – MPLS/ETH

1. User services are mapped to PW

Switching is done according to the Tunnel Label

2. Tunnel Label added

T1-TDM

T1-TDM

PW-Label

VCC/T1

Tunnel Label

PW Gateway

PW Gateway

VCC

VCC

ETH

ETH

MPLS

VCC

VCC

3. The Tunnel Label is stripped

VCC/T1

PW-Label

Tunnel Label

4. PW Label mapped back to user services


Pseudowire pw product offerings

Pseudowire (PW) Product Offerings

  • Preserves investment in legacy TDM/ATM equipment in migration to PSN

  • Lowers OpEx of TDM/ATM service by utilizing packet infrastructure

  • Ultimate voice quality (no compression, no conversion)

Packet

Network

PW Gateway

PW Gateway

TDM Service

TDM Service

Pseudowire


Pw solution private line leased line over packet

PW Solution – Private Line / Leased Line over Packet

Application:

  • Carrying broadcast traffic over PSN network

    Benefits:

  • Uses PSN to provide voice services

  • Saves leased line costs by using a single line for voice and data

  • Preserves legacy TDM equipment, features and functionalities

ISDN

ISDN

CODEC

CODEC

PSN Network

T1

T1

POTS

POTS


Migration of broadcasting to next generation networks

PW Protocols

for Different Services


Tdm pseudowire services

TDM PseudowireServices

Unframed TDMoIP or SAToP over PSN

  • T1/E1 line is a 2.048/1.544 Mbps bit stream

  • Full transparency to the TDM traffic

  • No multi-bundling

  • End-to-end framing sync

  • TDMoIP standard: IETF – ietf-pwe3-tdmoip

  • SAToP standard: draft-ietf-pwe3-satop- Structure-Agnostic TDM over Packet

PBX

PBX

PW Gateway

PW Gateway

ETH/IP/ MPLS

Network

ETH

ETH


Tdm pseudowire services cont

TDM Pseudowire Services (cont.)

Framed TDMoIP or CESoPSN

  • Framed T1/E1

  • Multi-bundling

  • TS0/Fbit termination

  • Local framing sync

  • TDMoIP standard: IETF – ietf-pwe3-tdmoip

  • CESoPSN: draft-ietf-pwe3-cesopsn.txt - Structure-Aware TDM Circuit Emulation Service over PSN

PBX

PBX

PW Gateway

PW Gateway

ETH/IP/ MPLS

Network

ETH

ETH

Framing Sync

Framing Sync


Tdmoip payload size

TDM/HDLC Payload

UDP

IP

ETH

CRC

CW

TDMoIP Payload Size

  • TDMoIP Unframed/Framed payload size is between 48-1440 bytesn x 48 bytes (where n=1,2,3,……,30)

  • CESoPSN & SAToP payload size isbetween 32-512 bytes according to the number of time slots in a bundle (configurable)

    Payload configuration:N – Number of time slots in a bundle

    L– Packet payload size in bytes

    • L should be multiple integer (m) of number of time slots in the bundle (N) L = m x N

  • HDLCoIP mechanism monitors the data stream until a frame (data) is detected (flag)


Pseudowire standards

Pseudowire Standards

  • RAD is actively involved in most of the standardization bodies


Extending tdm via ethernet radio

Extending TDM via Ethernet Radio

Transmitter Location

  • Extends broadcast audio to a remote transmitter site

  • Cost effective solution by using extremely affordable Ethernet microwave radio

  • Uses existing CODECs over T1 Pseudowire

  • Effective range – up to 40 miles

Distribution Center

Ethernet Microwave Link

PW Gateway

PW Gateway

ETH

T1

ETH

T1


Distributing content over ip

Distributing Content over IP

Remote Station

  • Large PW gateway in Center

  • Has the capability to break-up

    a single T1 or send multiple T1s

  • IP/MPLS network is more cost

    effective when going long distances

  • Fully redundant central site solution

Distribution Center

POP/HUB/CO

PWE Gateway

PW Gateway

T1

ETH

T1

ETH/IP/ MPLS

Network

Remote Station

PW Gateway

ETH

T1


Tdm pseudowire product line

TDM Pseudowire Product Line


Summary

Summary

  • The changing landscape of Telco services is forcing changes to the way broadcasters use these services

  • Pseudowire technology allows broadcasters to continue to use existing voice equipment while replacing Telco infrastructure

  • Pseudowire technology is established and mature to a point where it is becoming widely used

  • RAD has experience dealing with the various issues that arise with the use of Pseudowire technology

Over 110,000 TDM over IP ports installed since 2000

Over 50,000 TDM over IP ports installed in the last 2 years only!


  • Login