Network Protection

Traditional span-protecting p-cycles offer protection for those on-cycle spans and straddling spans. On-cycle spans are referred to as the spans on a p-cycle itself, while straddling spans are referred to as the spans, who are not on the p-cycle, but whose two end nodes are on the cycles. P-cycles are an advanced span protection technique. [...]

Span-protecting p-Cycles are a type of span protection technique. “p” stands for “protection” and “preconfigured.” The traditional span restorable network performs restoration at the two end nodes of a link, and shows much better spare capacity efficiency but requires a relatively longer restoration time than the ring techniques. Better than the span-restorable technique, span-protecting p-cycles [...]