Question: In UTRAN Iu interface RANAP signalling, when an ERROR INDICATION message containing an error (e.g., Transfer Syntax Error) is received, how should the receiving Node proceed?
Option 1: Trigger the Error Indication procedure and notify the sending Node.
Option 2: Ignore the error if it's an Abstract Syntax Error with 'ignore and notify' criticality.
Option 3: Attempt to correct the error before proceeding with local error handling.
Option 4: Initiate local error handling without triggering the Error Indication procedure.
Explanation: According to the specified error handling precedence, if any type of error is detected in an ERROR INDICATION message, the receiving Node should initiate local error handling and not trigger the Error Indication procedure. This approach ensures that errors within error messages are handled internally to prevent potential loops or further complications in the signalling process between Nodes.