Configuration errors

This section contains the following sub-sections:

• Cannot establish session

• Session established, but the transaction does not run

• SDLC line or token-ring not up

• SDLC Link and PU are active, but the LU is not active

Configuration errors are often the cause of communications failure. To resolve these errors, you need the following information, which was created when the network was installed and successfully implemented:

• For IMS TM, definitions for transaction name and APPLID

• SNA /NCP definitions for the LU and associated logmode

• SDLC or token-ring connection charts to the mainframe

• Sybase interface files for clients and TRS

• Sybase security definitions, including client logins, connection groups, and transaction groups

Verify that this information is the same as it was before the error occurred. If it is not, determine whether a recent change is contributing to the problem.

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