what does stp forwarding mean
The Spanning Tree Protocol (STP) is an older network protocol that ensures a loop-free topology for any bridged Ethernet local area network.The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. Unlike in STP, RSTP will respond to BPDUs sent from the direction of the root bridge. 2  An RSTP bridge will propose its spanning tree information to its designated ports. 3  If another RSTP bridge receives this information and determines this is the superior root information, it sets all its other ports to discarding.