How Do Network Monitoring Tools Work? This Is Important For Network Managers!

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   In a computer network, there needs to be an analysis or supervision of each of its components. This monitoring process will help to review and monitor the stability of functions and network performance. Therefore, it is very important for a network expert to understand many things related to network monitoring tools. Well, we will present the following information and descriptions related to network monitoring tools. Let's look!

What Are Network Monitoring Tools?

   As explained earlier, this network monitoring tool is a process of monitoring functions and performance in a network. Network monitoring tools will analyze each data in a network traffic so that all available resources can work optimally.

   Examples of the application of network monitoring tools you can see if you experience interference on the network and the internet connection becomes much slower. Well, that's when network monitoring tools will work by looking for problems that cause this. There may be one application running in the background and using all available bandwidth, be it to renew an application or invite malware. If this application has a heavy burden then other applications will experience difficulties in accessing the internet. If a problem has been detected, the network monitoring tools will forcibly monitor and close the application to restore bandwidth so that the network will return to normal.


How Does The Network Monitoring Tools Work?

   Network monitoring tools are needed in the monitoring system, this is caused by the need to obtain data from resources on other devices. Thus, the existence of network monitoring tools will facilitate the work of the admin to maintain multiple servers. Well, here is the system of network monitoring tools in a device:
  1. Network monitoring tools will ensure that the server is set up correctly
  2. Network monitoring tools will always be standby in monitoring the server, so that it can always be monitored whether the server can function properly or not.
  3. Conduct analysis by means of traffic monitoring of the server if there is interference
  4. Network monitoring tools will immediately take quick action if an interruption or error occurs
  5. Network monitoring tools will also monitor the use of space on the server
Benefits Of Network Monitoring Tools


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   Of course, network monitoring tools have many very important benefits. Among others are:
  1. To show operational conditions contained in the network, such as connectivity, resources, and network status.
  2. Monitor the quality of the SLA (Service Level Agreement) of the bandwidth used.
  3. Manage and optimize quality improvement and network performance (system upgrades).
  4. Analyzing problems in a network, some problems can also be fixed automatically.
  5. Ensure the network security system can operate properly.
  6. Detect and prevent hackers who want to access important servers and services.
  7. Viruses will be more easily detected.
  8. The device will be easier to make network capacity planning.
   So, in general this network monitoring tool has the main role in managing network work in a device. If the management system on this network monitoring tool does not work properly, then the device cannot function optimally.

How Do You Determine Network Monitoring Tools?

   There are various types of network monitoring tools that are used to monitor the state of a network, but you must pay attention to several things in choosing the type of network monitoring tools to use. Here we present tips on choosing network monitoring tools, including:
  1. The Scope Of Problem Solving
    The scope of problem solving in a network monitoring tool will vary, you must choose the right tools and in accordance with what is needed. The things that are taken into consideration are:
    • The location of the problem is in a system alone or in several systems
    • The scope of problem solving is only for the server or also including other devices
    • Is the scope able to reach remote sites
    • Is the network monitoring tools system also capable of monitoring special programs contained in a device
    So, then you must be careful in determining what type of network monitoring tools you will use, and whether the choice is right on target with the problems found on your device.

  2. Connectivity And Scalability
    Next you have to make consideration It is a matter of connectivity and scalability of tools with your device. This connectivity will be directly related to handling a component, i.e. by seeing how many devices can be supported and how much data is contained in these devices. While scalability is determined by how much load can be held by the type of network monitoring tools that you choose.

  3. Warning Feature
    The warning feature will be useful in providing information to the network manager or IT team if anything suspicious happens. Thus problems that arise can be more quickly resolved and prevent the occurrence of damage or the emergence of even greater problems.

  4. Automatic Discovery Feature
    The automatic discovery feature is useful to ensure that the system will always be updated when there are additional new network components. The automatic discovery feature that uses SNMP (Simple Network Management Protocol) based technology is able to determine the status of the network components that you are using and simplifies the process of renewing new networks.

  5. Mapping Topology
    Source : https://personalpages.manchester.ac.uk/staff/m.dodge/cybergeography/atlas/stevecoast_1_large.jpg

    Topology mapping is a feature that presents visual expenditure of a network, as well as monitoring the performance and availability of the network. With this feature, you will be facilitated in identifying devices that are connected to other devices.

What Are The Various Network Monitoring Tools

   In general, network monitoring tools are divided into 2 types, namely:
  1. Connection Monitoring
    This connection monitoring is a network monitoring technique that is carried out by conducting tests between the monitoring station and the target device, so that a disconnected connection can be detected. This type of network monitoring tool works through the provision of a number of simple programs that can be used by network managers to create an IP host and test the destination address.

    If there is a problem in a device such as a switch, router, or weakened host, a warning will appear on the network management device that tells that the connection is not working optimally. However, this type of connection monitoring is still considered difficult and ineffective, because this system does not indicate the location of the device which is experiencing interference. Therefore, this type of network monitoring tool is only used if no other means are available.

  2. Traffic Monitoring
    Traffic monitoring is a type of network monitoring tools that are capable of monitoring networks over a wide and far range. This traffic monitoring technique not only detects problematic devices, but can also provide information if there are overloaded components. The weakness of the traffic monitoring system is that it can only detect one segment at a time, and if you want to detect data on other segments, the program must be moved to that segment.

Types Of Connecting Devices On Network Monitoring Tools
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   There are several types of network monitoring tools that must be available. This network device functions to connect between one computer with another computer, so that computers can receive messages and information from each other.

   The connecting device in this network monitoring tool consists of:
  1. Router
    A router is a network device that can connect two or more networks through a star, bus and ring topology. This router is only used in TCIP / IP router network protocols. In addition, the Router also becomes an access server that connects the LAN to a telecommunications service called a DSL (Digital Subscriber Line) Router.

  2. Wireless Card
    Source : https://www.nesabamedia.com/wp-content/uploads/2017/08/pengertian-dan-fungsi-wireless-card-1280x720.png

    A wireless card is a device that is able to connect between 2 or more devices using only WiFi without wires. However, the device that has a wireless card in it is only a laptop and several types of computers, while for some other types of computers must buy a wireless card separately because it is not included in the device.

  3. LAN Card
    LAN cards are also included in the connecting network monitoring tools. The use of this LAN card must be to connect the computer via cable. The working system of this LAN card is to change the parallel form to serial form, thus the data will be sent via the UTP cable.

  4. Bridge
    Next is the bridge, this bridge is a network device that can expand connections in a far range. Bridges function to forward data and share connections into multiple networks. Bridge also has an internal bridge table so that it can control the segments that must be filtered.

  5. HUB
    HUB serves to share servers on other networks and helps the process of copying data from sources connected to the HUB portal. So, if in a building there are 50 computers connected to one HUB portal, then port l The HUB can share data to 50 connected computers.
    So, the connecting devices can create network connections between one device and another. Of course it also must be synergized with other software tools, and the discussion will be discussed below.

Examples Of Network Monitoring Tools Software

   Well, next are examples of network monitoring software tools that are often used, including:
  1. NMap
    NMap is a software that is quite often used as a network monitoring tool. This software is based on a security scanner that is compatible with various operating systems on each device, such as Windows OS, Linux, Mac OS X, BSD & Amigos OS, and Solaris. NMap has 2 versions including GUI and Command line versions.

    Specifically, NMap has functions like other network monitoring tools, namely detecting open ports, upgrading OS versions, identifying device security systems, and others.

  2. WireShark
    The second network monitoring tool is WireShark. WireShark is a security software that functions to analyze data packet transmissions, observe the connection process and transfer data between one device and another, and find out the contents of data packets contained in the path of the computer network.

  3. Look @ LAN
    The third software is Look @ LAN. Look @ LN is also quite often used as the main choice in network monitoring tools. This is because the Look @ LAN software can be used on any OS (Operation System). In addition, the operation is also quite easy and the observations are reported clearly in tabular form.

    The features contained in Look @ LAN are able to know the IP Address in a network device, find out the connectivity status between networks, know the OS used on each connected device, find out the hostname, netBIOS name, netBIOS user, SNMP status and traps , and know the server computer device that is connected and not connected.

  4. 4. Angry IP Scanner
    Next up is Angry IP Scanner, this software serves to help the network management to work optimally. In addition, this software also serves to assist network managers in overseeing the occurrence of network troubleshooting due to interference with the IP address and anticipating the presence of parties who force entry into the network using the available IP address.

  5. Dude
    Like other network monitoring tools, dude software also functions to monitor the network. This software is also very compatible with other network protocols such as SNMP, ICMP, DNS and TCP.

    Dude software is also capable of performing a full scanning process, including on subnet-based networks. So if there is a troubleshooting on one of the personal devices, a warning message will automatically appear.

    Connections between network monitoring tools can work optimally if the software and hardware are connected. Thus, both must be compatible with each other so that the connection can run well and all other obstacles can be overcome.
   Well, thus the discussion that we can present is related to network monitoring tools, of course there are many things that must be understood for a network manager related to this problem. Hopefully what is conveyed can be understood and if there are things that you want to ask please fill in the comments column below. May be useful!

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