SNMP traps processed for discovery

A trap message processed for discovery purposes conveys one of the following conditions for a device in the managed network:

• A device, not yet in the modeled topology, was started.

• A device, already in the modeled topology, was equipped with an additional field replaceable unit (FRU) or had an FRU removed; for example, a card was inserted into the device.

• A device, already in the modeled topology, had a TCP connection closed by a remote application; for example, a Telnet session to the device was terminated.