Hello!
Solarwind polls devices through snmp. He may collects data about networks resources like:
- Interfaces (name, description, status, vlan, interface type, ip address);
- Vlan
- Vrf(vrf, rd, interfaces);
- Nodes (nodes description, poll ip address).
All that resources need upload to another system that complete full network resource map. Also perhaps may need add poll on additional snmp mib to collect additional data.