When talking about industrial networking applications, stable and seamlessly data transmission is essential in the system. That’s why redundancy is introduced into networks to improve the reliability. The idea of redundancy is that when one device fails, another one can automatically take over. Korenix has developed and patented numerous technologies to offer robust and reliable network connection. Korenix Patented Protocols not only allows Korenix industrial switches or network equipment to support the standard protocols but also allows Korenix products to integrate with switches from third-party suppliers. In this article, standard and Korenix- patented protocols that are supported by Korenix switches will be introduced.