How do I know when an IP address is unavailable?

Using network management software to manage the network can realize the detection of the target IP and monitor the up/down status of the target IP node equipment. Network management software has this function. When a node (device) in the network topology fails, the network management software will record a log record. Network management software or platform can define the classification and level of these log information (such as downtime events). Nowadays, many network management software or platforms have integrated the function of short message platform, and users can specify which events to notify the operation and maintenance managers of the network system through short message platform.