PROCESSING METHOD FOR APPLYING RAPID SPANNING TREE PROTOCOL TO SINGLE RING NETWORK TOPOLOGY

摘要

Disclosed is a processing method for applying a rapid spanning tree protocol to a single ring network topology, comprising: adding two additional protocol fields in a BPDU: field 1 indicating the protocol type, field 2 indicating topology change information, if a port is invalid, setting the value of the field 2 to be true; otherwise setting it to be false; a switch, after receiving the expanded BPDU, on the one hand, matching the field 1, and when one or more switches do not support or are not configured into a single ring network operating mode, all the other switches on the network automatically operating the standard rapid spanning tree protocol so as to cooperatively work; and on the other hand, judging the value of the field 2, if the value is true, an RSTP state machine sending the BPDU with the true field value so as to notify a counter-side switch of link failure on the network, and each switch conducting rapid fault restoration. The method can shorten the self-healing time of a ring network when a link in a single ring network topology is invalid, and at the same time can be automatically compatible with a standard RSTP, thereby meeting the requirements of various communication services.