What is network monitoring system

1. What is network monitoring System or network management? Network monitoring System is a network that is required to solve several types of problems under this one name. It is a general term for operations work that protects the work-lifeline. This network monitoring activity also measures the behavior and output of systems and components over a period of time. It is said to be an act of observing and checking and monitoring changes over time (Observability). Specifically, usage rate monitoring of CPU, Memory, HDD, etc., fault performance monitoring by SNMP metrics, Syslog monitoring, web monitoring, application monitoring, virtual OS monitoring such as VMware, Hyper-V, AWS cloud monitoring, and security scan monitoring. We will continue to In general, network monitoring system provides five basic functions. 1. Alert 2. Discover 3. Surveillance 4. MAP 5. Report The job is also defined as a broad range of responsibilities, skills and teamwork that must be borne by everyone involved in operations rather than a single job of an individual. On the other hand, we, as a network software vendor, claim that monitoring tools are magic wands for solving network monitoring problems. We feel it is necessary. In other words, it is necessary to start with the recognition that there is no tool in the world that can solve all problems with a single tool. 1

2. Basic issues and problems of network monitoring system: 1) As a common story, we continue to use old applications without the latest network monitoring information and tool updates, and we get stuck in a bad precedent, saying, "There were no problems until now." I've heard a lot of cases where it's a problem. 2) In addition, the operation group, which should be a mission-oriented team, tends to become a tool-obsessed type and tends to be inflexible and unproductive because it concentrates too much on searching for tools diligently. Become. 3) Which is better, the agentless type or the agent type? First of all, the agentless type is easy to introduce. However, is it possible to expand the network monitoring range in the future and flexibly monitor points that you want to monitor uniquely? With agentless, it is necessary to consider whether bandwidth can be secured especially when the number of monitoring points increases. On the other hand, there are many agent-type devices with SNMP agents installed, but users who are particular about specific monitoring still develop private MIBs to perform monitoring work. If this target device does not have an agent, you will have to install and configure it. And agents that can be distributed simultaneously are on the market (our company: Agent-D) 4) Finally, there is a discussion about whether a monitoring-free tool is better or a paid tool is better. Free tools are also gaining some popularity these days. However, it seems that a free tool needs to make a wise decision to deal with hidden resource costs, labor cost management, individualization of development, the risk of leaving the company or moving, and the inflexibility of monitoring. Also, recently, catching up with development, such as support for AWS cloud and new virtual OS (multiple), is a new issue. 2