IPP-STP
Spanning Tree Protocol allows the use of layer 2 networks with redundant paths by creating a covering tree on which frames will be transmitted. The newly created topology of the network (the tree) is loop free, thus preventing problems such as broadcast storm from occurring.
Available to all SRX running 12.3X48+
Available to all MX running 20.2R1+
Available to all vSRX running 20.3R1+