1-29[Sysname-port-group-manual-group1] multicast-suppression 20port-group manualSyntaxport-group manual port-group-nameundo port-group manual port-group-nameViewSystem viewDefault Level2: System levelParametersport-group-name: Specifies a port group name, a string of 1 to 32 characters.DescriptionUse the port-group manual command to create a port group and enter port group view.Use the undo port-group manual command to remove a port group.By default, no port group exists.Examples# Create port group group1. system-view[Sysname] port-group manual group1[Sysname-port-group-manual-group1]storm-constrainSyntaxstorm-constrain { broadcast | multicast | unicast } { pps | kbps | ratio } max-values min-valuesundo storm-constrain { all | broadcast | multicast | unicast }ViewLayer 2 Ethernet interface viewDefault Level2: System levelParametersall: Disables storm control for all types of packets: broadcast, multicast, and unknown unicast.broadcast: Enables or disables broadcast storm control.multicast: Enables or disables multicast storm control.unicast: Enables or disables unknown unicast storm control.pps: Sets storm control thresholds in pps.kbps: Sets storm control thresholds in kbps.ratio: Sets storm control thresholds as a percentage of the transmission capacity of the interface.max-values: Sets the upper threshold, in pps, kbps, or percentage.