IP/TV itself This is a one-way multicast solution in which live or prerecorded
video and audio is transmitted to the registered users of the
system. An excellent use for this is executive presentations to branch
offices (such as quarterly updates) to people in the field.While the presentation
is being carried out, viewers can send questions to the presenter
by way of a text window at the receiving site.These text-based
questions can then be answered by the presenter as needed. Cisco uses
this method to host monthly technical lunch meetings to inform the
field about new Cisco products, and customers are often invited to participate
in these meetings. If your organization subscribes to it, you
could receive direct feeds from networks like NBC and CNN and display
it on the client computer in real-time audio and video. However,
this form of distribution consumes close to 6 Mbps of bandwidth on a
continual basis per computer. If 50 users were receiving the broadcast,
300 Mbps of bandwidth is not needed—just the 6 Mbps Ethernet
stream.WAN circuits should start off at a minimum of 128 Kbps available
bandwidth since routers and processing devices address each CDN
packet to all devices at the multicast address.