Multicasts
Today’s campus networks abutment intranet applications that accomplish amid one sender
and one receiver. The apple is alteration rapidly and this archetypal will be superceded by a new
paradigm. In the arising campus network, a appeal is there for intranet and multimedia
applications area one sender will address to a accumulation of receivers simultaneously.
Applications like these accommodate transmitting all-hands letters to employees, video and
audio broadcasting, alternate video ambit learning, transmitting abstracts from a centralized
data barn to assorted departments, advice of banal quotes to brokers, and
collaborative computing. For example, an centralized abstruse abutment ability ability use
multicast book alteration software to accelerate software updates to assorted users in the campus
simultaneously in one beck of data.
With the appearance of MP3s, alive video, MPEGs, voice, and added acid edge
multimedia applications, the assessment on the arrangement basement has never been greater.
Reaping the allowances of these applications and amalgam them into the campus network
can be a challenge. High bandwidth use is the adjustment of the day. The adequacy of today’s
networks to amalgamate the text, graphics, audio, and video apparatus and effectively
deliver them is more difficult.
To that end, multimedia cartage types can bisect the arrangement in one of the afterward forms:
• Unicast
• Broadcast
• Multicast
Each one of these methods of manual has a altered aftereffect on arrangement bandwidth, as
you will see in the “Foundation Topics” area of the chapter.