Network
Reliability
Network must have the capability to ensure that all links(Click
here to learn more about connection) are up all the time. If a network isn’t reliable, then downtime will be a very
common problem.
Contents:
There are 4 key points that have to be met when setting up a
network
1. Fault Tolerance – To have more than 1 connection connected to a
certain place.
2.
Scalability
– To be able to grow in network size and fit into the network topology/design
due to increasing demands
3.
Quality
Of Service – To modify the bandwidth priority of traffic so bandwidth is
put to better use
4.
Security
– To protect the network from intruders. Can increase the security of physical
access as well as implementing extra security
system so as to beef up the network security
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Fault Tolerance
We all know how dire a solution is
when the network is down. Everyone starts to panic
and chaos arise. A Fault
Tolerant Environment will be able to ensure that when a disaster do happen, the
impact done to the equipment are kept to the minimal. This is important because
it will allow faster recovery time. The damage done to the organization is also
reduce greatly depending on the kind of accident that happen. There are 2 kinds
of Fault tolerance
1.
Fault
Tolerance in a circuit switch
·
Makes use of the load balancing concept. Have
many path to the same destination. However only one path will be chosen. If the
chosen path is down, remaining system will still be functioning. This allows
for the network to continue as usual as if nothing has every happen.
2.
Fault
Tolerance in a Packet Switch
·
Similar to circuit switch fault tolerance. The
only difference is that the redundancy link is also use when there is no error.
Data is usually broken up into smaller packet and encapsulated with the source
and destination address. They are then send separately over and de encapsulated
at the destination
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Scalability
Scalability is the ability to scale up the network base on
the current demand needed for the network.
What we are able to enjoy now wasn’t possible in the past.
The technology in this world has well advance rapidly and is still continuing
to evolve. In the past, it was hard to keep in contact with your friend from
another country. It was hard to conduct the different market trends. It was
hard to advertise your product. It was hard to get a business partner. All
these were overcome through the power of The Internet. So now what?