Learn about the types of verification used during the connection process.
To begin a connection, your server sends information to the remote device you are connecting to. The device identifies the server using this information. The device then sends information back to the server, which the server uses to identify the device. The server compares that information against the information that is contained in the line and controller descriptions. If a match occurs and other connection values are correct, the connection process continues. In the meantime, the remote device performs a similar process.
Your server and the remote device use two types of verification during the connection process. The first type (required), matches the line and controller description information with the connection information that the remote device sent. Once the information has been verified, your server continues the process.
The remote device sends the following information:
The other type of verification matches the SNA exchange identifier values. SNA hosts that use parallel connections require this verification. This verification is optional for advanced program-to-program communications (APPC).