Multicast
the deployment of an IP multicast network. There are several factors that
should be taken into consideration, including bandwidth implications, mul-
ticast applications, application requirements, user requirements, the location
of the recipients, required equipment, cost, and most importantly, what multi-
cast source(s) will be used.
down when thinking about multicast routing. As was discussed in the pre-
ceding chapter, distribution trees are built based on the position of the root
(source) of the tree. Therefore, when planning the routing for the multicast
network, you must know where your sources or RPs will be located.
tomer's requirements as well as the impact multicast will have on the exist-
ing network.
(MBONE) multicast sessions; therefore, they must implement multicast
through a Distance Vector Multicast Routing Protocol (DVMRP) tunnel or
with Multicast Border Gateway Protocol (MBGP). If the multicast source is
within the network and meant to stay within the confines of the network,
other design issues come into play. It is important that you understand what
each multicast routing protocol brings to the table when it comes to opera-
tional functionality.
ment. With so many options, there is bound to be a solution for almost any
requirement. Through understanding requirements, and through preparing
and planning, you can successfully implement an IP multicast network.