APAN-KR Overlay Multicast APAN-KR Overlay Multicast Working Group ActivityWorking Group Activity

2003.1.232003.1.23Joonbok LeeJoonbok Lee

Computer Science Dept., KAISTComputer Science Dept., KAISTjblee@cosmos.kaist.ac.krjblee@cosmos.kaist.ac.kr

ContentsContents

1.1. Introduction: overlay multicastIntroduction: overlay multicast

2.2. APAN-KR overlay multicast working groupAPAN-KR overlay multicast working group2.1 Overview2.1 Overview2.2 Goals2.2 Goals2.3 Member2.3 Member

3.3. ActivitiesActivities3.1 Testbed3.1 Testbed3.2 Digital Video Services3.2 Digital Video Services

4.4. Digital Video Services EventsDigital Video Services Events5.5. Next PhaseNext PhaseLinks Links

1. Introduction1. Introduction

IP Multicast IP Multicast Relay on network layer to replicate and deliver data Relay on network layer to replicate and deliver data

packets to receivers.packets to receivers. Difficulties Difficulties

Limited router supportLimited router supportPer-group/source state in routersPer-group/source state in routersReliability difficultiesReliability difficultiesCongestion-control difficultiesCongestion-control difficultiesUndefined pricing modelUndefined pricing model……

Overlay MulticastOverlay Multicast Known as Relayed Multicast.Known as Relayed Multicast. Combining application layer multicast with network layer Combining application layer multicast with network layer

multicast.multicast.

2. APAN-KR overlay multicast 2. APAN-KR overlay multicast working group working group

MotivationMotivation We had difficulty to watch multicast video sessions and We had difficulty to watch multicast video sessions and

experiment multicast research. experiment multicast research. Zooin.net want to test their products.Zooin.net want to test their products.

Started at October, 2002.Started at October, 2002.

2.1 Overview

To experiment current overlay multicast To experiment current overlay multicast technology and find practical/research issues. technology and find practical/research issues.

To deploy APAN-KR overlay multicast testbed for To deploy APAN-KR overlay multicast testbed for multicast research experiments and services. multicast research experiments and services.

To explore applications which can be serviced on To explore applications which can be serviced on overlay multicast testbed and do experimental overlay multicast testbed and do experimental service. service.

2.2 Goals2.2 Goals

2.3 Member2.3 Member

5 Universities and 1 Company5 Universities and 1 Company KAISTKAIST Chungnam National UniversityChungnam National University Chonnam National UniversityChonnam National University K-JISTK-JIST Korea UniversityKorea University Zooin.netZooin.net

More institutes will participate.More institutes will participate.

3. Activities3. Activities

Deployed overlay multicast testbed Deployed overlay multicast testbed using Zooin.net Castbox™ .using Zooin.net Castbox™ . Castbox Manager: KAIST (, K-JIST)Castbox Manager: KAIST (, K-JIST) Castbox Relay: KAIST, CNU, CHNU, K-JIST, Castbox Relay: KAIST, CNU, CHNU, K-JIST,

Zooin.netZooin.net Castbox Agent: any nodes which are Castbox Agent: any nodes which are

connecting to the testbed. connecting to the testbed. Will expand it to all participants.Will expand it to all participants.

Monitored by MRTG.Monitored by MRTG.

3.1 Overlay Multicast Testbed

CastBoxCombo (Relay+ Manager)

CastBoxRelay

CastBoxRelay

CastBoxRelay

KAIST APAN Node

Chonnam Univ.

Zooin.net

Chungnam Univ.

KORENCommod

ityInternet

Commodity

InternetCastBoxCombo

(Relay+ Manager)K-JIST

CastBoxagent

CastBoxagent

CastBoxagent

CastBoxagent

CastBoxagent

CastBoxagent

CastBoxagent

Deployed TestbedMonitor

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Testbed StructureTestbed Structure

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Local multica

st

Castbox Relay Castbox

Manager

Castbox

Relay

CastboxAgent

CastboxAgent

CastboxAgent

CastboxAgent

Castbox

Relay

Castbox

Relay

Castbox

Relay

3.2 Digital Video Service3.2 Digital Video Service

Digital Video is a good application on the testbed.Digital Video is a good application on the testbed. Cooperate with APAN-KR digital video working Cooperate with APAN-KR digital video working

group.group. WMT (Windows Media Technology) was used.WMT (Windows Media Technology) was used.

5 WMT encoders and 1 WMT stream server were set up. 5 WMT encoders and 1 WMT stream server were set up.

2 live streams are available.2 live streams are available. 640X480 , 30fps, 1.5Mbps640X480 , 30fps, 1.5Mbps As a source, popular channel (movie and sports) are used.As a source, popular channel (movie and sports) are used. 3 streams will be available soon.3 streams will be available soon.

News, university lectures and conference netcast are News, university lectures and conference netcast are considered as a candidate.considered as a candidate.

CastBoxCombo (Relay+ Manager)

CastBoxRelayCastBox

Relay

CastBoxRelay

KAIST APAN NODE

Chonnam Univ.

Zooin.net

Chungnam Univ.

KORENCommodity

Internet

Commodity

InternetCastBoxCombo

(Relay+ Manager)K-JIST

Encoder

WMT Stream Server

IPTV Server (?)

WMTEncoder

WMTEncoder

WMTEncoder

WMTEncoder

CastBoxagent

CastBoxagent

CastBoxagent

CastBoxagent

CastBoxagent

CastBoxagent

CastBoxagent

Digital Video Service on Testbed

4. Digital Video Service Events4. Digital Video Service Events

Test for massive number of users.Test for massive number of users.

2002.11 Korea vs. Brazil A-Match football game 2002.11 Korea vs. Brazil A-Match football game broadcast. broadcast.

2002.12 Korean Presidential Election broadcast.2002.12 Korean Presidential Election broadcast. ( TV debate , Counting of votes ( TV debate , Counting of votes

broadcast)broadcast)

2003.4 Neulhui Korean folk dance team2003.4 Neulhui Korean folk dance team performance broadcast. performance broadcast.

Korea vs. Brazil A-Match football Korea vs. Brazil A-Match football

game broadcastgame broadcast

2 Streams2 Streams 640 x 480, 30fps, 640 x 480, 30fps,

1.5Mbps1.5Mbps 320 x 240, 30fps, 320 x 240, 30fps,

768Kbps768Kbps

Announce to KAIST Announce to KAIST sports news group and sports news group and APAN-KR mailing lists.APAN-KR mailing lists.

Korea vs. Brazil A-Match Korea vs. Brazil A-Match football game broadcastfootball game broadcast

Totally 579 users Totally 579 users Maximum: 198 usersMaximum: 198 users

0

20

40

60

80

100

120

140

18:10 19:10 20:10 21:10

Time

Num

ber

of U

sers

1.5Mbps Stream 750Kbps Stream Number of users by AS Number

KAIST(82% )

KIX(4% )

Postech(3% )

HANARO(2% )

Korea vs. Brazil A-Match football Korea vs. Brazil A-Match football game broadcast : Traffic game broadcast : Traffic MeasurementMeasurement

Traffics of KAISTTraffics of KAIST Max. 60MbpsMax. 60Mbps

5. Next Phase5. Next Phase

TestbedTestbed Make stable.Make stable. Make more sites to be participate.Make more sites to be participate. Support multicast research experiment.Support multicast research experiment. Expand to APAN.Expand to APAN. No need to concern the bandwidth?No need to concern the bandwidth?

Digital video serviceDigital video service Test other video format (MPEG1/2, DVTS, … ).Test other video format (MPEG1/2, DVTS, … ). Support APAN-KR (or APAN) related workshop netcast.Support APAN-KR (or APAN) related workshop netcast.

LinksLinks

Working Group HomepageWorking Group Homepagehttp://tv.kr.apan.net/wg/http://tv.kr.apan.net/wg/

Digital Video Service HomepageDigital Video Service Homepagehttp://tv.kr.apan.nethttp://tv.kr.apan.net

Testbed Measurement PageTestbed Measurement Pagehttp://cloud.kaist.apan.net/mrtg/castboxhttp://cloud.kaist.apan.net/mrtg/castbox

Zooin.netZooin.nethttp://www.zooin.net/http://www.zooin.net/