REDUNDANT TELECOMMUNICATION SYSTEM USING STANDBY UNIT MEMORY UPDATING APPARATUS AND METHOD OF OPERATION

摘要

Data which must be memory equalized across a redundant, high availability system (165) utilizing processor-based components is structured in memory segments which form data packets for a data link (230) between active and standby components (210, 220). Direct memory access is employed to copy memory segments (212) within the active component (210) into a queue (213) for the data link (230), which transfers memory segments (212) without utilizing the processor 211 within the active component (210) while automatically verifying data integrity and acknowledging successful data transfers. The direct memory access copying of memory segments (212) to the queue (230) may be triggered for changed memory segments by either the processor (211) or specialized hardware within the active component (210), or may be run in a continuous loop sequencing through a predefined range of memory segments. The standby component (220) may thus be kept abreast of changes to data within memory segments (212), such as changes to call states or resource allocation records relating to call processing.