You have an SNMP capable device but somehow Spectrum cannot discover and model it due to network restriction. Spectrum can generate pingable model for the device and the device has been configured to send SNMP traps traps to SpectroSERVER. This article explains how we can configure so Spectrum processes SNMP trap for a pingable model.
Any version of Spectrum
Spectrum can process SNMPv1, SNMPv2 and SNMPv3 traps on Pingable. If SNMPv3, a profile must be present.
We need to create SNMPv3 profile that matches the username, authentication and privacy passwords and their encryption algorithm specified in SNMPv3 trap.
The default value enable_traps_for_pingables parameter in $SPECROOT/SS/.vnmrc is TRUE. If you have set this parameter value to FALSE then you need to set it to TRUE and restart SpectroSERVER.
In order to ALARM on the pingable, the Value_When_Red must be set. See this article for more details: https://knowledge.broadcom.com/external/article?articleId=51817