Operation Manual – MSTPH3C S7500 Series Ethernet Switches Chapter 1 MSTP Configuration1-181.2.9 Timeout Time Factor ConfigurationA switch regularly sends protocol packets to its neighboring devices at the intervalspecified by the Hello time parameter to detect the link failures. Normally, a switchregards its upstream switch faulty if the former does not receive any protocol packetsfrom the latter in a period three times of the Hello time and then initiates the spanningtree regeneration process.Spanning trees may be regenerated even in a steady network if an upstream switchcontinues to be busy. You can configure the timeout time factor to a larger number toavoid this problem. Normally, the timeout time can be four or more times of the Hellotime. For a steady network, the timeout time can be five to seven times of the Hellotime.I. Configuration procedureFollow these steps to configure timeout time factor:To do ... Use the command ... RemarksEnter system view system-view —Configure thetimeout time factorfor the switchstp timer-factor numberRequiredThe timeout time factordefaults to 3.Normally, you are recommended to set the timeout time factor to 5 through 7.II. Configuration example# Configure the timeout time factor to be 6. system-view[H3C] stp timer-factor 61.2.10 Maximum Transmitting Speed ConfigurationThe maximum transmitting speed of a port specifies the maximum number ofconfiguration BPDUs a port can transmit in a period specified by the Hello timeparameter. It depends on the physical state of the port and network structure. You canconfigure this parameter according to the network.I. Configuration procedure (in system view)Follow these steps to configure the maximum transmitting speed for specified ports insystem view: