Basic Network for Multicast Applications
This is a simple network with four client computers, one media server containing
the streaming data to be disseminated, and what is called a multicast registration
server (MRS) where the client machines must register to receive the data.
This MRS can be a physical server, an appliance-based device, or a combination
of the two. It is where the media administrator creates the title of the distribution
application, as well as a list of the users who either want to, or need to, view the
title.When this list is completed, each end recipient will receive notification of
this data.The end user will then send an RSVP stipulating whether they wish to
receive it or not.
The clients are running the application that will view the data, and each must
register with the MRS in order to receive the data stream when it is presented,
which now adds their computer to the distribution list. At the time of the
showing, the data is sent out only to those who have officially registered for the
playing of the data. Because we previously configured the network for VoIP
quality, this means all of the AVVID family is now covered for QOS needs.
Since Figure 10.19 is a simple four-client network running at speeds ranging
from 10 Mbps to 100 Mbps, all four should receive the data at full stream and get
a good presentation. Problems only pop up when there are many more segments
to the network, more routers, and varied speed link connections.