Many devices—such as mainframes, personal computers (PCs), printers, routers, hubs, and interfaces—typically have built‑in SNMP agents that monitor and gather information about the status of these resources so they can be managed.
An agent responds to requests issued by management applications or managers regarding specific data associated with a resource. These requests may involve, for example, information about file systems, databases, and memory usage. An agent also sends traps to managers to notify them of noteworthy conditions related to a resource. The managers interpret the raw data and take action based upon how each manager is configured.
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