Abstract:
Local area network is a small area computer network by interconnecting devices; they are
data terminal equipment and data converting equipment. LAN is the end connection it may be
logically or physically after router to client with different topology. Therefore multimode
optical fiber is the logical choice for Storage Area Networks and Local Area Networks. In JIT
LAN for backbone transmission implemented by optical fiber, but is not efficient work and
there is some resource wastage and less fault protection topology. There is design gap in
network; it needs high emphasis to design and implementation.
JIT campus has many buildings each building should connected by LAN network, totally
optical fiber backbone, seventy-four switches, eleven hubs, and nine access points are used.
To ensuring this LAN, it needs parameters analyses such as cost, bandwidth with distance,
reliability, better fault protector, and power consumption. Then design best LAN by
considering all parameters and evaluate it with existence LAN.
Reliability or failure-free operations of the system evaluate by sample of five times per month
each downtime interval is for six hour at one-year time, in power consumption there is
difference between LED and LASER optical light source, bandwidth based on JIT demand
from ISP and internal communication, cost evaluate from online price. For customer, data
prediction is depending on user categories such as light, medium and heavy users. According
to these considerations, I proposed new better topology design and evaluate the performance
relative to existing LAN.
The proposed scheme is better due to cost difference between single mode and multimode
fiber; LED has less power consumption than LASER, length of optical fiber affect reliability,
needed bandwidth achieve at both topology and fiber modes. Therefore, there are two
mechanisms used to mitigate it, using multimode as much as possible and change topology
from extended star to ring-star.
