HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 2 - LAN Switching Command Refer - Page 143

Related commands • stp bridge-diameter • stp timer forward-delay • stp timer hello stp timer-factor Use stp timer-factor to configure the timeout interval by setting the timeout factor. Timeout interval = timeout factor × 3 × hello time. Use undo stp timer-factor to restore the default. Syntax stp timer-factor factor undo stp timer-factor Default The timeout factor of a device is set to 3. Views System view Predefined user roles network-admin Parameters factor: Sets the timeout factor in the range of 1 to 20. Usage guidelines After the network topology is stabilized, each non-root-bridge device forwards configuration BPDUs to the surrounding devices at the interval of hello time to determine whether any link is faulty. If a device does not receive a BPDU from the upstream device within nine times of the hello time, it assumes that the upstream device has failed and will start a new spanning tree calculation process. In a stable network, this kind of spanning tree calculation might occur because the upstream device is busy. You can avoid such unwanted spanning tree calculations by lengthening the timeout interval (by setting the timeout factor to 4 or more), thus saving network resources. HP recommends that you set the timeout factor to 5, 6, or 7 for a stable network. Examples # Set the timeout factor of the device to 7. system-view [Sysname] stp timer-factor 7 Related commands stp timer hello stp transmit-limit Use stp transmit-limit to set the BPDU transmission rate of a port. 136