I have a highest-level diagram / map / picture of connected networks where internet is pictured as a cloud, some physical machines, firewall, switches etc which describe an overview of the "ecosystem" / at large scale.
Is there a name for such a diagram?
It might not make a difference that this particular diagram doesn't display many software servers, mostly physical machines and networks. In these diagrams if there is a database it is usually depicted as a cylinder (looks like a storage can).
It is not a sequence diagram, not a use-case diagram and not a class diagram. Is it even an UML diagram?