Basic HTML version of Foils prepared May 19 99

Foil 30 MBONE

From NPAC Computer and Network Capabilities Tango Group Internal Technology Seminars -- Spring 99. by Roman Markowski


MBONE - Multicast backBONE
MBONE is a virtual network built on top of the Internet; The purpose of MBONE is to minimize amount of data required for multipoint audio / video-conferencing
MBONE is free; it uses network of mrouters that can support multicast
Many older routers do not support multicast; to avoid this we must set up tunnels on both ends; multicast packets are encapsulated in unicast packets and sent through a tunnel;
MBONE uses a small subset of 224.0.0.0 - 239.255.255.255 MBONE uses 224.2.0.0 for multimedia conferencing
MARILYN: mrouted, /etc/mrouted.conf
  • tunnel 128.230.162.18 207.41.200.99 metric 1 threshold 64



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