High Network ResiliencyThe AT-IFS802SP/POE (W) industrial switch support the X-Ring protocol that can help the network recover from connection failure within 20ms, thus making the network system very resilient. The X-Ring algorithm is similar to spanning tree protocol (STP) algorithm but its recovery time is faster than STP. In addition, Dual Homing and Couple Ring Topology are also supported to further increase the network availability.