Network monitoring tools are mostly utilized by network administrators to consider
network configuration errors or even monitor network workload. These tools will
also be an indispensable resource with regard to programmers who develop system
applications. To give you a good example, let's say you possess written a
client/server software. You start the software and nothing happens--the client
doesn't even connect to the actual server. At this stage, you cannot be sure if
the problem lies with the customer or the server. Through capturing frames,
however, you are able to establish that the customer sent a data body, but the
server didn't react and the problem is therefore likely about the server's
side. Or you may notice that the data sent through the client is different from
that which you expected.
We
will mainly make use of the two programs, Network Keep track of and Ethereal,
to show different network protocols. Both programs possess a similar graphical
user interface. A wide selection associated with similar programs is available
for sale. The UNIX operating system provides the tcpdump command. As in
opposition to the programs mentioned over, tcpdump does not possess a graphical
user interface and is made to be used mainly with regard to scripts.
In
addition in order to these tools, network monitoring hardware can also be
available. What are the benefits of hardware network monitors? These tools are
particularly essential for technical staff. Software monitors only display frames
which are undamaged. It may be that the station has a broken network interface
card, that produces faulty frames. Software monitors possess a difficult time
recognizing these types of damaged stations. Moreover, Fiber Distributed Data
User interface (FDDI) service frames aren't displayed by software screens.