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If you monitor a large number of devices, where each device may have many connected objects of its own, requesting information from each device is impractical. You can set up the SNMP Trap Server, and each managed device can notify it about any issues by sending a trap message.
You can monitor SNMP traps with SolarWinds NPM or SolarWinds SAM.
SNMP traps are received by the SolarWinds Trap Service, which listens for incoming trap messages on UDP port
162, and then decodes, displays, and stores the messages in the SolarWinds Orion database.
The SolarWinds Trap Service can receive and process SNMP traps from any type of monitored network device, and can handle large numbers of simultaneously incoming traps.
A SolarWinds installation can process approximately 500 traps per second. Higher capacity can only be achieved with significant hardware improvements over minimum SolarWinds requirements.
You can view SNMP traps either in the Orion Web Console or in the Trap Viewer application. The Trap Viewer application allows you to configure trap-specific alerts, to view, filter, and search for traps.
UDP port 162is open for IPv4 and IPv6.
See the list of Trap alert variables you can use.