1. APAN-KR Mbone SWG 1998. 3. 3 Hyang-ah Kim and Hyungsuk Kim hakim@cosmos.kaist.ac.kr donald@disney.kotel.co.kr

2. Network Topology of Mbone-KR 1998. 1 mbone-sec@mbone.or.kr KIX/KT streamwk.kix.net SHINBIRO matrix.shinbiro.com KIX/KT eix-mbone1.kix.net BORANET mbone.bora.net KIX/CS tomcat.nca.or.kr KREN nms.kren.nm.kr HANSOL TELECOM h2o.hansol.co.kr KREONET www.kreonet.re.kr INET snow-man.inet.co.kr snu.ac.krkangwon.ac.krchungnam.ac.krchonbuk.ac.krchonnam.ac.krpusan.ac.krgsnu.ac.krkonkuk.ac.kr….. hanyang.ac.kryonsei.ac.krkaist.ac.krpostech.ac.krsogang.ac.krnada.co.kr….. seri.re.krkorea.ac.krsookmyung.ac.krinha.ac.krhangkong.ac.kr….. 64 32 32 64 16 32 32 32 32 32 32 KORNET /PUBNET lge.co.kr twincom.co.krdisc.co.krinternex.co.kr 32 16 kotel.co.kr16 32 mbone.ln.net news-stock.gip.net hit.co.kr 32 International Mbone

3. High Performance Mbone Application Definition[KAIST97] a set of applications of data rate equal to or higher than the bandwidth of T1 link Specification Audio application - higher than FM Quality(16/22kHz mono/stereo) Video application - higher than SCIF(704X576) resolution Shared whiteboard - negligible impact on network bandwidth Prototype systems environment Pentium 133MHz, 64MB RAM, FreeBSD-2.2.5/Linux-2.0.32 Frame Grabber: Matrox Meteor, Soundcard: Gravis UltraSound performance Audio application - 270~720kbps with 16/22kHz mono/stereo Video application - less than 1Mbps with SCIF resolution Shared whiteboard - less than 64kbps

4. Plan Network KR-JP link(ATM level) is being tested KR-JP link(IP level) would be up in March 1998 APAN-KR Multicast testbed PIM-DM will be deployed on KR-JP Multicast tunnel (between Cisco routers) Global Mbone connection through APAN network is considered Research Activity New Internet Multicast Routing Architecture[Meyer97] deployment MBGP testbed between KT and KAIST(plan) GateD-Multicast(version 5)[Merit98] Tokyo XPSeoul XP KT Lab/ Seoul KAIST/Taejon 6MbpsT1

5. References Mbone-kr network topology http://www.mbone.or.kr/ [KAIST97] KAIST, High Performance Mbone Application,1997. http://cosmos.kaist.ac.kr/salab/project/mbone-ng/ [Meyer97] David Meyer, Multicasting in the Internet:Today and Tomorrow, CCIRN meeting, December 1997. http://www.antc.uoregon.edu/CCIRN97/ [Merit98] Merit Gated Consortium, http://www.gated.org/

6. Classification of High performance Mbone applications 1st level Network bandwidth : T1/E1 (1.5~2Mbps) Audio quality : FM quality audio (8~22kHz) Video quality : 640x480 resolution Recommendation : VIC with NV format, large size, quality 0 Software Release 2nd level Network bandwidth : T2/E2 (6~8 Mbps) Audio quality : CD quality audio(44.1kHz, 16bit sampling) Video quality : 800x600 resolution 3rd level Network bandwidth : T3~OC12 (45~620 Mbps) Audio/Video quality : HDTV quality (1920x1480) 4th level Network bandwidth : OC-48~(Gbps) Audio/Video quality : 'tele-immersion'