79To do... Use the command... RemarksConfigure the timeout factor of the device stp timer-factor factor Required3 by default.Configuring the maximum port rateThe maximum rate of a port refers to the maximum number of BPDUs the port can send within each hellotime. The maximum rate of a port is related to the physical status of the port and the network structure.Make this configuration on the root bridge and on the leaf nodes separately.Follow these steps to configure the maximum rate of a port or a group of ports:To do... Use the command... RemarksEnter system view system-view —Enter Ethernet interfaceview or Layer 2aggregate interface viewinterface interface-typeinterface-numberEnter interfaceview or portgroup viewEnter port group view port-group manualport-group-nameRequiredUse either command.Configure the maximum rate of the ports stp transmit-limit limit Required10 by default.NOTE:The higher the maximum port rate is, the more BPDUs will be sent within each hello time, and the moresystem resources will be used. By setting an appropriate maximum port rate, you can limit the rate atwhich the port sends BPDUs and prevent MSTP from using excessive network resources when the networkbecomes instable. H3C recommends that you use the default setting.Configuring ports as edge portsIf a port directly connects to a user terminal rather than another device or a shared LAN segment, thisport is regarded as an edge port. When a network topology change occurs, an edge port will not causea temporary loop. Because a device does not know whether a port is directly connected to a terminal,you need to manually configure the port to be an edge port. After that, this port can transition rapidlyfrom the blocked state to the forwarding state without delay.Make this configuration on the root bridge and on the leaf nodes separately.Follow these steps to specify a port or a group of ports as edge port or ports:To do... Use the command... RemarksEnter system view system-view —Enter Ethernet interface viewor Layer 2 aggregateinterface viewinterface interface-typeinterface-numberEnter interfaceview or portgroup viewEnter port group view port-group manualport-group-nameRequiredUse either command.
