APPARATUS FOR DETECTING ERRORS IN A COMMUNICATION SYSTEM

摘要

A communication network switch comprises a control module having a control processor and a plurality of communication modules connected to the control module via a control interface. Each communication module comprises a detector for detecting errors associated with communication signals such as read and write access requests received from the control module and a device for reporting the detected errors to the control module. Detected errors are stored in - registers in the control module and are read by error detection software running on the control processor. The software module reports the errors and determines whether the cause of the errors can be corrected, and if so takes corrective action. Error detection software can also be simultaneously run on a redundant control module, and detected errors independently reported and passed to the active control module.