Other components of the EMS integration

In addition to collectors, EMS integration is composed of several components that assist in the collection of topology data.

The components of the EMS integration are described in Table 1.

Table 1. Components of EMS integration
Component	Description
Collector finder `ncp_df_collector`	The Collector finder reads the collector host seeds from a seed table in the `collectorFinder` database. It then queries the collectors specified in this table to get a list of devices managed by the EMS associated with each collector.
Collector agents	Retrieve basic and detailed information about the devices on the collector. Each agent makes use of the Collector helper to retrieve this information.
CollectorDetails agent	Retrieves basic information about the devices on the collector, including sysObjectId, sysDescr, and naming data.
CollectorInventory agent	Retrieves local neighbor, entity and associated address data for each of the devices on the collector.
CollectorLayer1 agent	Retrieves layer 1 and microwave connectivity information for the devices on the collector.
CollectorLayer2 agent	Retrieves layer 2 connectivity information for the devices on the collector.
CollectorLayer3 agent	Retrieves layer 3 connectivity information for the devices on the collector.
CollectorLTE agent	Retrieves LTE-specific entity information for the devices on the collector.
CollectorRan agent	Retrieves radio access network (RAN) information for the devices on the collector.
CollectorVpn agent	Retrieves layer 2 and layer 3 VPN data for the devices on the collector.
Collector helper `ncp_dh_xmlrpc`	Enables Network Manager to communicate with the collectors using the XML-RPC interface.
`ncp_dh_java` (Java™ Helper)	Enables Network Manager to communicate with the Java Collectors using the GRPC interface.