Network Monitoring is one of the most utilized tools that a network administrator needs to manage and optimize Network Performance. Network monitoring, as its name suggests, means monitoring the network, which can help to improve the speed of service and reduce costs in a network. Network monitoring includes monitoring all the devices that are on the network, including physical and virtual servers, routers, switches, firewalls, UPS and more. It can also monitor services in a network such as Domain Controller, SQL Server, File Server, DCHP, DNS Server, and other services on the network. We can easily use monitoring tools for correctness or inaccuracy. We know network devices and also monitor CPU, RAM, HD
You might think that when the network is working, you do not need to be tampered with. Why should you add another item to the list of tasks for network administrators? The reasons for insisting on network monitoring can be summarized at the high level to maintain the current health of the network, ensure access and improve its performance. Continuous and continuous monitoring is one of the most important factors in controlling the stability of computer networks and data centers. Therefore, the use of professional monitoring tools is one of the basic requirements of technology and information units. Obviously, the use of mechanized tools for monitoring operations, in addition to reducing costs, increases the accuracy factor and reduces the percentage of user error. Therefore, network monitoring is a vital task that should be done by today’s network administrators and other network support professionals.
In other words, one of the key factors in increasing the quality of services in databases and computer networks of banks, organizations and companies is the continuous monitoring of all components and network infrastructure.
You should note that monitoring devices and systems can not help you until they are able to monitor the correct target. The most important thing that matters to you in monitoring is the amount of bandwidth usage, software and operating system performance, as well as the health and efficiency of hardware servers. The most important decision to be made about monitoring systems on the network is what should be monitored? You need to make sure that all your sensitive services are fully monitored and the best option is usually to implement the network monitoring plan for network topology mapping, you will be in the network topology map of all types of networks and devices and communication platforms that are in your collection. You will understand it with its full understanding of its size and you know what needs to be monitored.
Performance indicators to be monitored:
When you decide to install a monitoring system, if you consider the best tool, it’s important to know exactly what you want to monitor. Below are some important monitoring features:
Bandwidth: the amount of information transmitted on the network, which has always been considered restrictions. Bandwidth monitoring can send us an alert when we exceed the bandwidth limit or when we close it and help us avoid the slowdown and downtime due to lack of bandwidth. For example, if our bandwidth is 1 Gb/s and we approach this defined range, our monitoring tool can promptly notify us and allow us to respond quickly, such as reducing unnecessary operations that may have occupied a lot of bandwidth.
Delay ( Latency ): or the time it takes to get from point A to point B in a network.
Data Lost ( Packet Loss ): data are in the form of packets in the network switch. It’s important to know how much of your packages and data are lost. Because as the number of lost packets increases, our network is progressing more slowly. Keep in mind that some packages can be retrieved if the protocol is needed, but the rest is OK.
Error hardware components ( Hardware components fail ): protocol SNMP detect any abnormal behavior that may occur in a device for you.
Bandwidth of applications or processes: Detect bottlenecks and overheads, as well as alert you about suspicious activities on the network (intruders, viruses, DDoS attacks, etc.).
Server Response Time: Time taken for a server to handle user requests and how effectively is your business applications running.
- Monitoring the performance of hardware on the network (Finding a defective hardware before it stops functioning
- Define action threshold (Trigger) based on different things (for example, we tell if someone sends an email containing office files, closes the user’s session, and informs the network administrator.)
- Monitoring service performance
- Monitoring the performance of servers
- Monitor the behavior of users
- Monitor the content of packages and emails
- Getting critical consumption points (bandwidth resources)
- Get critical points in system stability
- An outburst declaration by a monitoring system based on the parameters that network managers determine.
- Monitoring the performance of operating systems on the network