Patent ID: 9331870
Filing Date: 2016-05-03
CPC Classification: H04L

Claim Text:
1. A switch comprising: a receiver that includes a port having a variable transmission rate, that receives a connection-state change notice indicating that a connection state is changed from an information processing apparatus whose driver is scheduled to be stopped, and that receives an instruction specifying a transmission rate to be used by the port after a link which is disconnected by stopping of the driver is rebuild; and a processor to execute a procedure, the procedure including: shifting, when the receiver receives a connection-state change notice, the state of the receiver to a process preventing state to prevent execution of a process that corresponds to a signal that is received from the information processing apparatus; setting the transmission rate of the port according to the instruction received by the receiver; and releasing, when a bit pattern which is specified preliminarily in order to indicate a linkup is received through the port of the receiver in the process preventing state using the transmission rate, the receiver from the process preventing state.