Network Protection

Path restoration (PR) is a type of path-based network protection technique. The protection or restoration is carried out at the two end nodes of a working flow. PR is similar to shared backup path protection (SBPP) . However, the key difference between them is that the SBPP network protection technique is a type of failure-independent [...]

Shared backup path protection is also called SBPP for short. This is a type of path-based protection technique. Protection is carried out at the two end nodes of a working path. Specifically, a single end-to-end protection path and pre-planned protection capacity is reserved for each working path. Working path and protection path must be failure-disjoint. [...]