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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/
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