Connection establishment between LAN devices

If you use Systems Network Architecture (SNA) with a LAN protocol, use this information to establish the connection between LAN devices.

The correct relationship between a line description and a controller description helps to ensure connection establishment. A controller description determines which line descriptions your system uses. Therefore, you must ensure that the controller description refers to the correct line description.

Also, a line description governs the number of active controllers that can access it. By making the number too small, you might prevent the controller description from accessing the line description. Therefore, you should ensure a large enough value to allow the controller description access to the line description.

Besides the correct relationship between the line and controller descriptions, the descriptions must also contain the correct information to ensure connection establishment. The following information discusses some of the connection information that you are responsible for.

• How LAN devices identify themselves
  Your system compares the exchanged information against the information contained in the line and controller descriptions.
• Which LAN device initiates the connection
  In a Systems Network Architecture (SNA) environment you can determine who initiates the connection request and who waits for an incoming connection request.