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TV Channel Multicast and QoS Issues (Video over IP Demo Lab Result ). 신승목 부장 [email protected] www.netmanias.com. Contents. What is “Triple Play Service” ? Telco Video Service Overview Video over IP Requirements Demo Lab Configuration Lab Test Result Question ?.

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Tv channel multicast and qos issues video over ip demo lab result

TV Channel Multicast and QoS Issues (Video over IP Demo Lab Result )

신승목 부장

[email protected]

www.netmanias.com


Contents

Contents

  • What is “Triple Play Service” ?

  • Telco Video Service Overview

  • Video over IP Requirements

  • Demo Lab Configuration

  • Lab Test Result

  • Question ?


Tv channel multicast and qos issues video over ip demo lab result

통신 사업 환경의 변화: 비즈니스 경계의 파괴

High-Speed

Internet

TV

Voice

Introducing

2001 (북미)

2003 (아시아)

Cable

Established Market

Classic Market

Satellite

Classic Market

Introducing

2002 (북미, 유럽)

2003 (아시아)

Telco

Established Market

Classic Market


Mso s triple play service

Telephony

Cable TV

Internet

MSO

Voice

2001

Internet

TV

MSO’s “Triple-Play” Service

  • Triple Play in MSO

    • Video: Broadcast TV, VoD, PPV, HDTV

    • High-Speed Internet: Cable Modem (DOCSIS1.1/2.0)

    • Voice: Cable Telephony, VoIP

  • a one-stop shop for voice, video and data.

  • Goldman Sachs forecasts that by 2007, 20 percent of a MSO's revenue will come from telephony.


Example full service bundle

Example Full-Service Bundle

  • 40% of households “somewhat/very interested” in FS bundles

  • MSOs expect ~$100/m from bundled customer

Source: VideoTele.com, Yankee Group, Cahners In-Stat, Chibardun Telephone Cooperative

may ultimately trigger permanent disconnect of Telco


Telco video drivers

Telco Video Drivers

  • MSO의 “Bundled Triple Play” service로 인해 Telco의 주수익원인 Voice 시장 잠식

  • May ultimately trigger permanent disconnect of Telco

  • 가입자 이탈 방지

Competition with MSO

  • 기존의 Access망과 최소한의 투자를 통해 단일망으로 “Triple Play” service를 제공함으로써 ARPU (Average Rate Per User)의 증대

Increase ARPU

  • 현재, Broadband access Market는 성장중이며 WW 로 가입자이다. 2005년에는 WW 가입자에 이를 것으로 추정하고 있다. High-Speed Access Service의 판매를 촉진

Increase demand for

faster/higher access service


Competition with mso

Competition Heats Up for BundledServices:Telcos Missing Key ~ TV Delivery Component

Telcos need TV to

complete full service

bundle

Cable Operators face

voice challenge

TV

Voice

2001

2002

Internet

TV

Internet

Voice

Competition with MSO


Telco s network evolution

CO

CO

POP

Public

Internet

Metro Core

Access

CO

Telco’s Network Evolution

  • Metro Core and Access Network

  • 초고속 인터넷 액세스의 도입 (CO & ATM 기반 adsl 서비스)

  • Metro Ethernet의 도입: 메트로 액세스와 코어의 대역폭 확장

    • Ethernet to the Home

    • IP VDSL

    • IP ADSLL

  • Video over IP 서비스의 도입: 광대역 응용의 수용


Telco s metro networks 1

Telco’s Metro Networks 1

초기의 초고속 인터넷 액세스 서비스

Residential

CO

adsl

(<8Mbps)

CO

POP

DSLAM

ATM

Public

Internet

45M/155M

SONET/SDH

Edge

Router

CO

Metro Core

Access

MDU


Telco s metro networks 2

Telco’s Metro Networks 2

Metro Ethernet의 도입

Residential

Adsl2+

(24Mbps)

CO

CO

vdsl

(50Mbps)

POP

DSLAM

1GE

1GE

Public

Internet

Metro

Router

1GE

Edge

Router

1GE

CO

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

MDU

L2 SW

Ethernet

(100Mbps)


Telco s metro networks 3

Telco’s Metro Networks 3

Video over IP

영상 콘텐츠를

IP 망을 통해 전달

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

Unicast

(Streaming)

CO

Decoding

Broadcast TV

Headend

Adsl2+

(24Mbps)

IP STB

Modem/Hub

Live

Encoding

CO

vdsl

(50Mbps)

POP

DSLAM

Multicast

(Streaming)

1GE

Curb

Metro

Router

1GE

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

Ethernet

(100Mbps)


How does video over ip works

How does video over IP works ?

TV portal server

VoD

Streaming

server

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

Unicast

(Streaming)

Unicast Streaming

CO

Decoding

Broadcast TV

Headend

Adsl2+

(24Mbps)

IP STB

IP STB

Modem/Hub

Live

Encoding

CO

vdsl

(50Mbps)

POP

DSLAM

Live Encoder

Multicast

(Streaming)

1GE

Multicast Streaming

Curb

Metro

Router

1GE

Internet

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

Ethernet

(100Mbps)


Vod service scenario 1

VoD service scenario 1

TV portal server

VoD

Streaming

server

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

2.TV portal

1. STB 인증, 서비스인증

Unicast

(Streaming)

CO

Decoding

Broadcast TV

Headend

Adsl2+

(24Mbps)

3. VoD portal

IP STB

IP STB

Modem/Hub

Live

Encoding

CO

vdsl

(50Mbps)

POP

DSLAM

Multicast

(Streaming)

1GE

Curb

Metro

Router

1GE

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

Ethernet

(100Mbps)


Vod service scenario 2

VoD service scenario 2

TV portal server

VoD

Streaming

server

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

4. Select a Movie

5. get VoD streaming server IP(& content meta file)

Unicast

(Streaming)

CO

Decoding

Broadcast TV

Headend

Adsl2+

(24Mbps)

6. RTSP request for selected content

IP STB

IP STB

Modem/Hub

Live

Encoding

CO

vdsl

(50Mbps)

7. VoD streaming

POP

DSLAM

Movie

Multicast

(Streaming)

8. VCR-like control (FF,…)

1GE

Curb

Metro

Router

1GE

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

Ethernet

(100Mbps)


Broadcast tv service scenario 1 network initialization

Broadcast TV service Scenario 1Network Initialization

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

TV portal server

Unicast

(Streaming)

CO

Decoding

Adsl2+

(24Mbps)

Broadcast TV

Headend

IP STB

IP STB

Modem/Hub

Live

Encoding

CO

vdsl

(50Mbps)

POP

DSLAM

Live Encoder

Multicast

(Streaming)

1GE

Curb

Metro

Router

1GE

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

Ethernet

(100Mbps)


Broadcast tv service scenario 2 stb booting

Broadcast TV service Scenario 2STB booting

Encoding

Home

VoD

Headend

VoD

Streaming

servers

STB 인증, 서비스인증

PC

TV

Phone

TV portal server

TV portal

Unicast

(Streaming)

EPG

CO

Decoding

Adsl2+

(24Mbps)

Broadcast TV

Headend

IP STB

IP STB

Modem/Hub

Live

Encoding

CO

vdsl

(50Mbps)

POP

DSLAM

Live Encoder

Multicast

(Streaming)

1GE

Curb

Metro

Router

1GE

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

Ethernet

(100Mbps)


Broadcast tv service scenario 3 select a channel

Broadcast TV service Scenario 3Select a channel

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

TV portal server

Unicast

(Streaming)

CO

Decoding

Adsl2+

(24Mbps)

Broadcast TV

Headend

igmp join

Program

IP STB

IP STB

Modem/Hub

Live

Encoding

CO

vdsl

(50Mbps)

POP

DSLAM

Live Encoder

Multicast

(Streaming)

1GE

Curb

Metro

Router

1GE

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

Ethernet

(100Mbps)


Video over ip requirement

Video over IP Requirement

Compression, Encoding

IP encapsulation

Video over IP

영상 콘텐츠를

IP 망을 통해 전달

Contents Acquisition

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

IP Multicast

Middleware

Unicast

(Streaming)

CO

Decoding

Broadcast TV

Headend

Adsl2+

(24Mbps)

Metro Core

Network Capacity

AAA

IP STB

Modem/Hub

Live

Encoding

CO

vdsl

(50Mbps)

POP

DSLAM

Metro Access

Network Capacity

Multicast

(Streaming)

1GE

Curb

Metro

Router

1GE

http

IP QoS

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

Content 보호: CAS, DRM

VDSL DSLAM

L3 SW

Access

L2 SW

Home Network

(IP STB)

Ethernet

(100Mbps)


Requirement qos data path

Requirement: QoS (data-path)

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

QoS

Classification, Marking(DiffServ)

Unicast

(Streaming)

CO

Decoding

Broadcast TV

Headend

Adsl2+

(24Mbps)

IP STB

Modem/Hub

Live

Encoding

CO

vdsl

(50Mbps)

POP

DSLAM

Multicast

(Streaming)

1GE

Curb

Metro

Router

1GE

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

QoS

Priority queueing

Ethernet

(100Mbps)


Requirement qos control plane

2. Select Content (HTTP)

Requirement: QoS (Control plane)

Web Portal

QoS Manager

(Bandwidth Broker)

3. Request Reservation

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

4. Reply

1. Collection of network info.

Unicast

(Streaming)

CO

Decoding

Broadcast TV

Headend

Adsl2+

(24Mbps)

Bandwidth management

IP STB

Modem/Hub

Live

Encoding

CO

Admission control (CAC)

vdsl

(50Mbps)

POP

DSLAM

Multicast

(Streaming)

1GE

Curb

Metro

Router

1GE

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

Ethernet

(100Mbps)


Requirements ip multicast

Requirements: IP Multicast

PIM-SM, IGMP

Encoding

Home

VoD

Headend

VoD

Streaming

servers

PC

TV

Phone

Unicast

(Streaming)

CO

Decoding

Broadcast TV

Headend

Adsl2+

(24Mbps)

CO

IP STB

Modem/Hub

Live

Encoding

vdsl

(50Mbps)

POP

DSLAM

Multicast

(Streaming)

1GE

Curb

Metro

Router

1GE

http

Edge

Router

1GE

CO

Public

Internet

vdsl

(50Mbps)

Metro Core

VDSL DSLAM

L3 SW

Access

L2 SW

Ethernet

(100Mbps)


Yahoo bb residential service

竹の塚

西新井

赤羽

営業別館

成増

梅島

志村

十条

千住

東京

綾瀬

金町

田端

尾久

王子

東京

大泉

北町

板橋

東京

荒川

石神井

西練馬

亀有

練馬

白鬚

南板橋

別館

巣鴨

駒込

第二

葛飾

小岩

吉原

関町

向島

池袋

落合

別館

東京

大塚

浅草

小石川

高円寺

東京

上野

東京

野方

江戸川

蔵前

墨田

新宿

井草

東京

大久保

牛込

本所

東京

城東

荻窪

東江

戸川

駿河台

東京

浜町

久我山

杉並

神田

中野

九段

四谷

茅場兜

西新宿

大手町

FS

上北沢

葛西

丸の内

淀橋

東京

烏山

東京

赤坂

松沢

ビル2

東京

青山

江東

霞ケ関

東渋谷

代々木

成城

東京

深川

渋谷

東京

三田

狛江

世田谷

弦巻

白金

目黒

本館

品川

東京

瀬田

唐ヶ崎

大崎

別棟

東京

玉川

自由が丘

大田支店

埠頭

大崎

荏原

雪ケ谷

田園

調布

馬込

大森

池上

矢口

羽田

蒲田

Yahoo!BB (Residential Service)

CO

Corecess 6524

ADSL

(8Mbps)

IP DSLAM

Cisco 6509

Ethernet

1G

Main_ring

Existing

telephone line

L3 switch

Ethernet

1G

POP

Ethernet

CO

1G

1G

Dark fiber

(from NTT)

Internet

ADSL2+

(24Mbps)

10G

Ethernet

GSR

100M

Existing

telephone line

L3 switch

1G

10Gbps Transport Capacity

Ethernet

IP DSLAM

L3

Last-mile

L3 SW

L3 SW

L3 SW

Sub_ring

WDM

WDM

10Gbps

10Gbps

1Gbps

  • 가입자: 300만 (2003, 7월)

  • Metro Access: IP adsll (8Mbps 도입, 24Mbps도입중)

  • Metro Distribution: 1 GE Ring (Ethernet over Dark Fiber), OSPF 라우팅

  • Metro Core: 10 GE Ring (Ethernet over Dark Lambda, WDM 도입), OSPF 라우팅

  • 망구축 방법: First-mile access회선과 CO간의 Dark Fiber, 그리고 CO 공간을 NTT로부터 임대하고 IP DSLAM과 L3 Switch, DWDM장비는 구매하여 구축

  • 현재 일본 초고속 인터넷 가입자(12,000,000)의 30%에 가까운 가입자를 확보하며 성공함: 성공의 배경은 자가망 구축에 있다. 즉, 기존의 일본의 ISP는 DSLAM Back-haul Network를 구축하기 위해 NTT로부터 ATM 회선(1.5Mbps, 45Mbps, 155Mbps)을 이매하였으나 Yahoo는 Dark Fiber를 임대하여 자가망을 구축하듯이 메트로 이더넷 기반의 메트로 백본을 구축하였다. 이로 인해 Gbps의 대용량 대역폭을 갖는 Metro 네트워크를 저렴하고 또한 빠른 시일내 구축이 가능해짐.

Access

Network

Access

Network

Access

Network


Yahoo bb residential service1

PC

PC

Modem

Modem

IP STB

IP STB

Hub

Hub

TV

TV

Yahoo!BB (Residential Service)

Yahoo!BB

IP 방송 서비스

PC

NTT CO

(Co-location)

Modem

IP STB

[Samsung]

Hub

TV

CH1

IP 방송(19 channels)

(2Mbps MPEG2)

암호화

CH1 CH2 Ch3

Ethernet

Switch

MPEG2

Encoders

[Harmonic]

CH1

IP multicast (All channels)

암호화

GbE

IP DSLAM

Metro Core

L3 Switch

[Cisco]

VoD

Servers

[sgi]

(IGMP)

[Utstarcom]

CH2

BBcableTV (HE)

VoD (2Mbps MPEG2)

Yahoo

Service-POP

Last-mile

(adsl)

Metro Core

(Metro Ethernet, 1G/10G)


Video over ip trends

Video over IP Trends

Technology Improvement

Access BW: ADSL2+, VDSL, Ethernet

Video compression: MPEG2/4, WMT9, H.264

Video Component Cost

Continue to decline

(Encoder, IP STB, VoD server)

Performance

Price

Video over IP

Business Opportunity

Rise

xDSL, Ethernet

Port Cost

Time


Netmanias ip video service demo lab

TV

TV

TV

IP STB

IP STB

IP STB

Netmanias IP Video Service Demo Lab.

Broadcast TV

Headend

PC

Residential

Tandberg 5710

Tandberg TT7116

Modem

CO

TV portal

VoD servers

Optibase

MGW5100

adsl

Corecess

6800

HDTV (ETRI)

POP

Skystream

Mediaplex

VOD

Redback

SE800

adsl

DSLAM

Gold

Metro

Router

Gold

5 channels

([email protected])

pim-sm

Edge Router

영상전화

GE

Riverstone

8600

Hub

BE

Agilent

MDU

Aggregation

SW

GE

PC

(HDTV client)

Dasan L2 SW

Internet

Laurel

ST200

pim-sm

Silver

Modem

TV

Dasan VDSL

Dasan

L3 SW

Corecess VDSL

Modem

IP STB

Enterprise

IP Network Emulator

(Packetstorm)

L3 CPE


Ip tv multicast scenario

IP TV : Multicast Scenario

IGMP Domain

(Fast-Leave)

PIM-SM Domain

Edge

Router

Metro

Router

Streaming

Server

Metro

L3 Switch

Metro

L2 Switch

TV

100Tx

100Fx

GE

GE

GE

Camera : CH 1

STB

TV

DVD : CH 2

STB

L2

LHR

Router

RP

Multicast Source

1. All broadcast TV Channels distributed to RP

Select CH 2

TV Channels

2. IGMPv2 leave for previous or default channel

IGMPv2 leave

3. IGMPv2 query

4. IGMPv2 join

IGMPv2 join

5. PIM-SM join(*, G)

6. PIM-SM join(*, G)

7. IP Multicast Traffic

Select CH 2

8. IGMPv2 leave for previous or default channel

9. IGMPv2 query

10. IGMPv2 join

11. IP Multicast Traffic


Channel zapping case 1 l3 switch multicast traffic

Channel Zapping – Case 1L3 Switch 까지 모든 multicast traffic 이 가는 경우

  • Channel Zapping Time

    • Network Delay, MPEG Decoding Delay (STB)

Copy the packets

100Tx

100Fx

GE

GE

GE

Camera : CH 1

DVD : CH 2

STB

L2

LHR

Router

RP

Multicast Source

4 Mbps MPEG-2 (CH1 : 234.1.1.1)

Display CH 2

4 Mbps MPEG-2 (CH2 : 234.1.1.2)

Select CH 1

IGMP leave (group : 234.1.1.2)

t1

  • Tz = Tn + Td ≈ 1 ~ 2 sec

    • Tz : Channel Zapping Time

    • Tn : Network Delay

    • Td : MPEG-2 Decoding Time (STB)

  • Tn = 35ms ~ 50ms

  • Tj ≈ 10ms

IGMP query for 234.1.1.2

t2

tn

IGMP join (group : 234.1.1.1)

tz

t3

tj

4 Mbps MPEG-2 (CH1 : 234.1.1.1)

t4

td

Display CH 2


Channel zapping case 2 3 metro router or edge router multicast traffic

Channel Zapping – Case 2/3Metro Router or Edge Router 까지 모든 multicast traffic 이 가는 경우

Copy the packets

Copy the packets

100Tx

100Fx

GE

GE

GE

Camera : CH 1

DVD : CH 2

STB

L2

LHR

Router

RP

Multicast Source

4 Mbps MPEG-2 (CH1 : 234.1.1.1)

Case 2

4 Mbps MPEG-2 (CH2 : 234.1.1.2)

4 Mbps MPEG-2 (CH1 : 234.1.1.1)

Case 3

4 Mbps MPEG-2 (CH2 : 234.1.1.2)

  • Case 2 & Case 3

    • Network delay : 300ms ~ 900ms

  • Telco IP TV 서비스에서 Channel Zapping Time 을 줄이기 위해서는 MDU L3 Switch 또는 CO DSLAM 까지 모든 Multicast traffic 을 전달하는 하는 것이 효과적이다.


Multicast scalability multicast group capacity igmp multi session

Multicast ScalabilityMulticast group capacity, IGMP multi-session

100Mbps 6 Ports (40 groups per 100Tx)

2Mbps x 240 Multicast groups

= 480Mbps Multicast Traffics

100Tx

Smartbit

Camera : CH 1

100Tx

100Fx

GE

GE

GE

DVD : CH 2

STB

L2

LHR

Router

RP

Multicast Source

4 Mbps MPEG-2 (CH1 : 234.1.1.1)

4 Mbps MPEG-2 (CH2 : 234.1.1.2)

Select CH 2

IGMP leave for previous channel or default channel

IGMP query

IGMP join for selected channel (group : 234.1.1.1)

  • Packet Loss  No

  • Video Quality  Good

  • Channel Zapping Time  No Increase

4 Mbps MPEG-2 (CH2 : 234.1.1.2)


Qos requirement of streaming video

QoS Requirement of Streaming Video

Home Network

HDTV(19.2Mbps)

Internet

HDTV Server

VOD Server

영상전화

STB

PC

Camera : CH 1

Hub

GE

GE

GE

GE

modem

DVD : CH 2

Internet

VDSL

(50Mbps)

L3(Aggregation)

Metro Router

Edge Router

Multicast Source

SDTV(4Mbps)

  • High Bandwidth >= 25Mbps

  • End-to-End IP Network QoS 제공

    • Packet Loss, Jitter, Delay

    • Control Plane : Intserv, QoS Manager (Bandwidth Broker)

    • Data Plane : Diffserv (DSCP, 802.1p)

STB


Qos requirement of streaming video1

QoS Requirement of Streaming Video

  • Streaming Video requires lower packet loss and jitter

IP Network Emulator

(Packetstrom)

Camera : CH 1

100Tx

100Tx

GE

GE

GE

DVD : CH 2

QoS Parameters

(Packet Loss, Jitter, Delay)

STB

Multicast Source

L2

LHR

Router

RP

Quality of IP TV broadcast

Quality of IP TV broadcast

high

high

Delay

4Mbps MPEG-2 TS

2Mbps MPEG-2 TS

QoS

QoS

Jitter

Video Stream : 4 Mbps MPEG-2 TS

low

low

0.1

0

0.2

0.1

0.3

1000

10

0.01

1

0

0.03

0.05

Delay / Jitter [msec]

Packet discard ratio [%]


Qos implementation

BE

AF20

AF40

  • High Queue

  • Medium Queue

  • Low Queue

TV

TV

TV

IP STB

IP STB

IP STB

QoS Implementation

Broadcast TV

Headend

Bottleneck

PC

Residential

  • Priority queuing

  • & scheduling

Tandberg 5710

Tandberg TT7116

Modem

CO

TV portal

VoD servers

Optibase

MGW5100

adsl

Corecess

6800

HDTV (ETRI)

POP

Skystream

Mediaplex

VOD

Redback

SE800

Gold

adsl

DSLAM

Gold

Metro

Router

영상전화

5 channels

([email protected])

pim-sm

Edge Router

GE

Riverstone

8600

BE

Hub

Agilent

MDU

Aggregation

SW

1Gbps

GE

PC

(HDTV client)

Silver

Dasan L2 SW

Internet

Laurel

ST200

  • Classification & Marking

  • VOD & HDTV traffic

    • Gold (DSCP:AF40)

  • Priority queuing

  • & scheduling

pim-sm

Modem

TV

Dasan VDSL

  • Classification & Marking

  • Multicast traffic

    • Gold (DSCP:AF40)

  • Internet traffic

    • Silver (DSCP:AF20)

  • Agilent Background traffic

    • Best Effort

  • Priority queuing

  • & scheduling

Dasan

L3 SW

Corecess VDSL

Modem

IP STB

  • Priority queuing

  • & scheduling


Tv channel multicast and qos issues video over ip demo lab result

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Tv channel multicast and qos issues video over ip demo lab result

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