현재 SAL에서 사용하는 MBone PC환경CPU : Intel Pentium 133MHz RAM : 64 Mbyte Video Card : Matrox Millenium 4Mbyte Video Grabber : Omnimedia Tailsman Sequence-P1S (Matrox Meteor compatible) Sound Card : Gravis Ultra PNP Ethernet Card : 3COM 3C509 Combo
OS : FreeBSD 2.2 Administration Tools map-mbone : Multicast connection mapper mrinfo : Displays configuration info from a multicast router mrouted : IP multicast routing daemon mrtree : Information collector about a multicast tree mstat : Utility for querying from a remote multicast router mtrace : print multicast path from a source to a receiver mview : GUI front-end diagnostic Utility Applications imm : Image Multicaster Client ivs : INRIA Videoconferencing System nv : X11 Videoconferencing Tool sd : LBL Session Directory Tool sdr : Session Directory Tool vat : Visual Audio Tool vcr : VCR application for MBONE vic : Tool for video conferencing over Internet wb : Shared Whiteboard surface Archive ftp://cosmos.kaist.ac.kr/videoconference/ ftp://cosmos.kaist.ac.kr/systems/FreeBSD-tools/
기타 가능한 MBone PC 환경 - FreeBSDVideo Card : X windows를 운영할 수 있는 Video Card (eg. ATI, Tseng게열 video card) Video Grabber : Creative Video Spigot, Matrox Meteor, Connectix QuickCam Sound Card : Sound Blaster계열, Gravis Sound Card계열
현재 문제점 관련 페이지Sending only 다른 목적의 program은 작동시키지 않음 10Mbps Ethernet vic 2.7b2 사용 최대 가용 bandwidth : 3Mbps 최대 frame 수 : 30fps, default quality
*참고 : LARGE(640x480), MEDIUM(320x240), SMALL(160x120)
| LARGE | MEDIUM | SMALL | |
| 움직임이 많을 때 | (not supported) | 5~10 fps
300~400 kbps | 25~30 fps
200~300 kbps |
| 움직임이 적을 때 | (not supported) | 25~30 fps
200~300 kbps | 25~30 fps
200~300 kbps |
| LARGE | MEDIUM | SMALL | |
| 움직임이 많을 때 | 5 ~10 fps
2~2.5 Mbps | 25 ~30 fps
2~2.5 Mbps | 25 ~30 fps
500~800 kbps |
| 움직임이 적을 때 | 10 ~15 fps
1.5~2 Mbps | 25 ~30 fps
500~700kbps | 25 ~30 fps
200~300kbps |
| large | MEDIUM | SMALL | |
| 움직임이 많을 때 | 1~5 fps
500~800kbps | 5~10 fps
500~800kbps | 25~30 fps
500~800kbps |
| 움직임이 적을 때 | 5~10 fps
500~700kbps | 25~30 fps
300~500kbps | 25~30 fps
200~300kbps |
| LARGE | MEDIUM | SMALL | |
| 움직임이 많을 때 | 1~5 fps
1~1.5Mbps | 15~20 fps
1~1.5Mbps | 25~30 fps
700~1000kbps |
| 움직임이 적을 때 | 5~10 fps
1~1.5Mbps | 25~30 fps
1~1.5Mbps | 25~30 fps
300~500kbps |
nv = nvdct > h261 > cellb
Sending & Receiving두명의 참가자가 video data를 동시에 송수신함 움직임이 많도록 하고, MEDIUM 크기로 전송함
PC 1 : SAL MBone PC PC 2 : Pentium 150Hz, 48MB Memory, ATI-64 Video Card
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC 1 | send | 7 fps | 700 kbps | 700 kbps | |
| receive | 6 fps | 700 kbps | 1 % | ||
| PC 2 | send | 6 fps | 700 kbps | 700 kbps | |
| receive | 7 fps | 700 kbps | 1 % |
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC 1 | send | 5 fps | 200 kbps | 200 kbps | |
| receive | 4 fps | 200 kbps | 1 % | ||
| PC 2 | send | 4 fps | 200 kbps | 200 kbps | |
| receive | 5 fps | 200 kbps | 1 % |
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC 1 | send | 3 fps | 300 kbps | 400 kbps | |
| receive | 4 fps | 400 kbps | 1 % | ||
| PC 2 | send | 4 fps | 400 kbps | 400 kbps | |
| receive | 3 fps | 300 kbps | 1 % |
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC 1 | send | 5 fps | 700 kbps | 700 kbps | |
| receive | 4 fps | 700 kbps | 1 % | ||
| PC 2 | send | 4 fps | 700 kbps | 700 kbps | |
| receive | 5 fps | 700 kbps | 1 % |
PC : SAL MBone PC, Ultra : Sun Ultrasparc, Solaris 2.5, 64MB Memory, SunVideo board
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC | send | 8 fps | 800 kbps | 800 kbps | |
| receive | 14 fps | 800 kbps | 0 % | ||
| Ultra | send | 30 fps | 1 Mbps | 1 Mbps | |
| receive | 12 fps | 700 kbps | 0 % |
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC | send | 10 fps | 300 kbps | 800 kbps | |
| receive | 10 fps | 500 kbps | 0 % | ||
| Ultra | send | 14 fps | 1.1 Mbps | 3 Mbps | |
| receive | 4 fps | 130 kbps | 45 % |
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC | send | 2 fps | 100 kbps | 128 kbps | |
| receive | 6 fps | 140 kbps | 0 % | ||
| Ultra | send | 6 fps | 150 kbps | 1 Mbps | |
| receive | 2 fps | 100 kbps | 0 % |
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC | send | 2 fps | 100 kbps | 128 kbps | |
| receive | 11 fps | 280 kbps | 0 % | ||
| Ultra | send | 11 fps | 280 kbps | 3 Mbps | |
| receive | 1.6 fps | 60 kbps | 40 % |
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC | send | 3 fps | 500 kbps | 500 kbps | |
| receive | 5 fps | 500 kbps | 0 % | ||
| Ultra | send | 5 fps | 500 kbps | 1 Mbps | |
| receive | 3 fps | 500 kbps | 0 % |
| frame rate | bandwidth | loss | max-bandwidth | ||
| PC | send | 4 fps | 500 kbps | 500 bps | |
| receive | 14 fps | 500 kbps | 0 % | ||
| Ultra | send | 12 fps | 1.1 Mbps | 3 Mbps | |
| receive | 1 fps | 80 kbps | 80 % |