How network monitoring works and how network monitoring fits into the

・Basic components: SNMP promotes remote operation monitoring of in-house network devices using UDP protocol and Polling port 161 and Trap port 162.

・Mechanism: Server SNMP Manager and agent (installed on each device) are installed, and the server collects and diagnoses the device information emitted from the agent. "This is surveillance."

・Network monitoring scalability: It is possible to remotely monitor devices from 100 units for small networks to 10,000+ units for large networks. "Everything will be monitored remotely."

What network monitoring can do?

1) Trap and threshold monitoring - These are IT industry terms, but when translated into general terms, they mean almost the same as alarms. Device failure information (medical condition) is sent to Manager when the network device threshold (alarm value) is exceeded.

2) Performance monitoring -In addition to remotely monitoring the CPU usage, memory usage, and HDD usage of network devices, you can also set thresholds in advance and perform trap monitoring.

3) Ping monitoring – Also called life-and-death monitoring. It will be a constant remote monitoring to see if the counterpart device is working fine. You can set the ping interval and set it variable from frequent alive monitoring to slow interval monitoring.

4) Traffic monitoring – You can monitor interface inbound and outbound checks and traffic utilization.

5) SysLog monitoring – You can monitor the behavior caused by the error script by receiving the syslog output by the network device at the Manager.

6) Server Monitoring – Monitor processes running on the server.

How network monitoring works and how network monitoring fits into the world of SNMP.