I'm having some major issues with Auto-discovery (read, I can't seem to get it working at all). 

Here is what I have in my config:

$config['autodiscovery']['xdp']            = TRUE; // Autodiscover hosts via discovery protocols (CDP, LLDP, FDP, AMAP and other)

$config['autodiscovery']['ospf']           = TRUE; // Autodiscover hosts via OSPF

$config['autodiscovery']['bgp']            = TRUE; // Autodiscover hosts via iBGP

$config['autodiscovery']['libvirt']        = TRUE; // Autodiscover hosts found via libvirt

$config['autodiscovery']['ip_nets']        = array("10.0.0.0/8");  // Networks to permit autodiscovery

$config['discover_services']               = TRUE; // Autodiscover services via SNMP on devices of type "server"


I'm using resolution via hosts file, and I have about 150 machines there. However, autodiscovery seems to do nothing.