Configuration information is pulled from the master station by the distributed poller. The process of automatically finding IP addressable devices in the network. Discovery only takes place on a distributed poller. In first release, discovery is implemented as ping sweeps to insure a baseline discovery method. When a distributed poller discovers a device, it applies filters to the device to see if it matches.
Filters allow unimportant devices to be skipped and important devices to pass through.
When a device is discovered, it is tested for capabilities against a filter. The process responsible for this test is called capsd or the capability checker. Capability Checker Same as capsd. A service poller is responsible for testing the availability of a service on a target device in the network. Examples of service pollers are HTTP, SMTP, DNS, FTP, ICMP and any other service which can be tested externally.