The MBone map
Source: modified from the MBone FAQ

The MBone stands for the Multicast Backbone on the Internet.
The name was inspired by the name of the European backbone network "EBone".
Using the MBone, it is possible to transmit audio, video and other data in real time to multiple destinations throughout the global Internet.

The MBone is a virtual network.
It is layered on top of portions of the physical Internet to support routing of IP multicast packets.
The network is composed of islands that can directly support IP multicast, such as multicast LANs like Ethernet, linked by virtual point-to-point links called "tunnels".
The tunnel endpoints are typically workstation-class machines having operating system support for IP multicast and running the "mrouted" multicast routing daemon.

How do I join the MBone?

1. If you are an end-user site, please contact your network provider.
If your network provider is not participating in the MBone, you can arrange to connect to some nearby point that is on the MBone, but it is far better to encourage your network provider to participate to avoid overloading links with duplicate tunnels to separate end nodes.

If you are a network povider, send a message to the -request address of the mailing list for your region to be added to that list for purposes of coordinating setup of tunnels, etc:

        Australia:	mbone-oz-request@internode.com.au
	Austria:	mbone-at-request@noc.aco.net
	Canada:	 	canet-mbone-request@canet.ca
	Denmark:	mbone-request@daimi.aau.dk
	France:		mbone-fr-request@inria.fr
	Germany:	mbone-de-request@informatik.uni-erlangen.de
	Italy:		mbone-it-request@nis.garr.it
	Japan:		mbone-jp-request@wide.ad.jp
	Korea:		mbone-request@knc.or.kr
	Netherlands:	mbone-nl-request@nic.surfnet.nl
	New Zealand:	mbone-nz-request@waikato.ac.nz
	Singapore:	mbone-sg-request@technet.sg
	UK:		mbone-uk-request@cs.ucl.ac.uk
        North America:  mbone-na-request@isi.edu 
        Europe:         mbone-eu: mbone-eu-request@sics.se
        Other:          mbone-request@isi.edu

2. Set up an mrouted machine, build a kernel with IP multicast extensions added, and install the kernel and mrouted; or, install MOSPF software in a Proteon router.

3. Send a message to the mbone list for your region asking to hook in, then coordinate with existing nodes to join the tunnel topology.

Multicast for Windows users:

History and events:

In March 1992, an audio feed from the IETF meeting was broadcast to 28 remote locations, including points as distant as Sweden and Australia. This was the world's first use of the MBone. The MBone was brought up again in July '92, this time with video, and it's been online continuously ever since.

Sampling of Broadcasts:

Related sites:


Back to Video Conferencing Info page


Home

soon@doctor4u.com