Hi, thanks for reply.
I think it is possible to make a simple snmp poller using somethin API like Apache Camel and direct the output in a way that could be ingested by logstash.
The first idea was to use a logstash plugin just to avoid additional "intermediate tools" on the line.
Another possibility is to build up a Logstash plugin itself, capable of performing the snmp GetRequest. I wonder why this was not made until now. And I do not know the dificulty level of building such a plugin.