Another thing that I've noticed is that these devices that haven't Uplink information, doesn't have the VLANs information too. The SNMP community and views are correctly configured in these devices.
Another curious thing is the fact of these information are present in other devices of same model, vendor and SNMP configuration.
I don't know if it is a bug or a wrong configuration.
How can I debug the navtopology process to try solve this strange behaviour?
I realy appreciate this project and I want to help the community.
Thanks