Spanning tree protocol with data burst control

The invention claims a are for controlling the connection protocol data unit sharp-edged device and method; the invention The preferred embodiment with a port of the link management protocol activates and arises extends to the control machine exchange device. Arises extends to the control machine to loudspeakers receiving BPDU, and a retard the multiple environment and plug is announce of which the response is novel two bridge which makes BPDU of. The same is enough long to enable the bridge sleeved to the genuine two bridge. The invention arises protruded same as the control retards equal is equal to or is less than of the rapid spanning - tree protocol standard the universal other is 2 seconds time interval (Hello time) timer value.