The invention discloses a root information aging method and equipment. According to the root information aging method, MSTP (
multiple spanning tree protocol) network equipment discovers that root information is aged and sends a root information aging message from all specified ports of the network equipment, wherein the generation period of the message meets the following conditions: the root information is directly aged at the next hop, and an aged root message filtering
timer is started at the same time, and before the filtering
timer is overtime, messages received by the network equipment and corresponding to the aged root information are directly discarded; downstream equipment receives the root information aging message, immediately ages the corresponding root information on the downstream equipment according to a root bridge ID (identity) and a send bridge ID in the message and starts the aged root message filtering
timer at the same time; before the filtering timer is overtime, messages received by the downstream equipment and corresponding to the aged root information are directly discarded; and meanwhile, if the root bridge ID and the send bridge ID in the root information aging message are identical, the downstream equipment continues to spread the root information aging message from all specified ports of the downstream equipment. According to the root information aging method and the equipment, the circulating and residues of the aged root information in an MSTP network are avoided.