RSTP: Rapid Spanning Tree Protocol (rapid spanning Tree Protocol): 802.1w by the 802.1d evolved, this protocol when the network structure changes, faster convergence network. It is a multi-port type than 802.1d: Backup port (backup port) type, used for backup designated port. STP (Spanning Tree Protocol) is the acronym for the spanning tree protocol. This protocol can be applied to a loop network, redundant paths through a certain algorithm, while the loop into a loop network is pruned tree network, and to avoid proliferation infinite loop in the loop network packets.
Reproduced in: https: //blog.51cto.com/14216988/2409711