Link Stations

A link station is associated with a port and represents a connection to an adjacent node. A port can have multiple link stations. Link stations can be categorized in the following way:

Defined link station

A link station that has been defined explicitly (using a DEFINE_LS verb).

Dynamic link station

A link station that has been created as a result of activating a dynamic connection through a connection network. This is also known as a virtual routing node (VRN).

Implicit link station

A link station that has been created as a result of a call received from a previously unknown partner node on a switched or SATF port. This type of port is not defined in SNA APPN Architecture Reference.

Temporary link station

A link station that is created when a CONNECT_IN is received over the DLC interface on a switched or SATF port. It is either deleted, or becomes dynamic or implicit, when the remote node identity is determined.