Parallel Redundancy Protocol (PRP)

High availability applications don’t have time for a failure. Whether it’s offshore drilling, oil and gas refining or any other process application, constant uptime and 24/7/365 reliability are a must.

These types of applications demand greater reliability than what can be provided by a REP or typical ring, which may take precious seconds to recover from a failure – seconds that high availability process applications can’t afford. And that’s where the parallel redundancy protocol (PRP) comes in.

PRP requires two independent paths between each device. A copy of the same packet is then sent along both paths. Whichever packet is received first is processed, while the packet that comes in second is discarded. A network’s reliability is dramatically improved by having two copies of every packet traveling on parallel paths.

Phoenix Digital communication modules are natively 100 percent compatible with PRP. Because they run on redundant fiber media, our modules double-down on PRP’s redundancy, providing a truly multi-fault tolerant system. Network operators no longer have to worry about single-point faults. The PDC system allows for cascading faults, with no loss of performance.

PRP is normally considered a complex challenge, requiring high-end switches and programming. But our plug-and-play communication modules cut through the complexity and provide the needed redundancy at the I/O and peer-to-peer layer.

PDC modules are easy to implement and maintain, and they provide an unrivalled level of security, thanks to our packet encapsulation technology. When a multi-fault tolerant network is a must, Phoenix Digital communication modules provide the reliability that high availability applications demand.

Contact us today to learn how your system can benefit from our PRP solution.