METHOD OF IMPLEMENTING FAILURE RECOVERY IN A NETWORK NODE, I / O MODULE IN A DISTRIBUTED INDUSTRIAL AUTOMATION SYSTEM AND MEDIA READABLE BY COMPUTER

摘要

method and apparatus for transparent self-recovery in chain and ring networks. the invention described here provides a system and method for fault isolation and self-recovery in chain loop or loop network systems (103). According to aspects of the method and associated path selection algorithms described, self-recovery and failure isolation operations can be handled locally at each node in a loop and the overall failure recovery time under a link failure condition can be minimized. in addition, the method allows for self-recovery operations that are transparent to the rest of the network and to remote hosts.