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Using Bandwidth for Network Management and Monitoring
Bandwidth is one of the most
important parameters while talking about Network
Management and Monitoring. It is probably
the foremost data that is been reported by
any Network Monitoring Tool or Network Monitoring
Software. Bandwidth gives the idea of how
much speed will be available to the user and
the number of users who will be able to access
the page without many problems.
Technically, Bandwidth is just the difference
that exists between upper and lower cutoff
frequencies and is measured in Hertz (Hz).
But in case of computer networking, bandwidth
refers to the rate of flow of data and is
measured in bits/s or bps, with higher units
like kbps and mbps for kilobits per second
and megabits per second also existing.
The digital bandwidth capacity of any line
is known as channel capacity and the digital
bandwidth consumption of the line is known
as throughput. The term bandwidth is used
because the capacity of the channel in bits
per seconds is proportional to the analog
bandwidth which is available in hertz. This
is in accordance with the Hartley’s
Law.
The Web hosting companies specify the bandwidth
that a given site can use in the given time
period. For example, if the company allots
a certain site 1000GB for one month and the
total downloads from that site by its visitors
exceeds 1000 GB in the given month, then the
bandwidth would be called exceeded.
Channel Capacity is the maximum rate at which
the data can be transmitted with reliability.
External Noise is also included in this bandwidth.
For monitoring purposes, small amount of the
bandwidth in the network communication should
be reserved. A good Network Monitoring Software
would use minimal bandwidth. Processes like
pinging or transferring reports of the different
monitoring tools require the bandwidth in
the website.
The Bandwidth which has been allotted to a
certain website depends upon the quality of
the server being employed, the type of network,
quality of connecting wires, upon the receiving
system and the usage of the network by other
systems. When the network is connected using
Hub, bandwidth consumption increases significantly
when compared to the bandwidth consumption
when the connection is done using Switch.
This is because of the difference in functionality
of the two components. It should always be
noted that the throughput does not exceeds
the channel capacity.
Thus a thorough knowledge of bandwidth is
essential for effective Network Management
and Monitoring. To manage and control you
need to know it well enough! |
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