METHOD OF RESTORING A RING SYSTEM

摘要

In a system comprising nodes linked in a ring structure where data flows between the nodes, a method of operating the system after a link has become broken, comprising recovering said broken link and the system treating said recovered link as still broken and operating said system so as to block said recovered link. One of the nodes in said ring system is a redundancy manager node which sends messages to the other nodes to implement blocking of said recovered link. Only when another link becomes broken does the system start to use the previously recovered link.