The Link Manager is a central service for maintaining the cached data about infrastructure links. Each infrastructure link is uniquely identified by source connection point and destination connection point. Applications can query the Link Manager about link data, register with Link Manager to add and update links, or both.
The data stored for each link includes the link type, which can be direct or multi-hop:
A direct link represents a non-switched connection between two controlled devices.
A multi-hop link represents a switched connection between two controlled devices, where the connection spans one or more uncontrolled switches.
The link table sample data is shown in the following table:
|Source Device||Source Port||Destination Device||Destination Port|