H3C S3100-52P Operation Manual

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Contents

Operation Manual – Port Basic ConfigurationH3C S3100-52P Ethernet Switch Chapter 1 Port Basic Configuration1-10To do... Use the command... RemarksSet the action to be takenwhen a type of trafficreceived on the portexceeds the upperthreshold.storm-constrain control{ block | shutdown }OptionalBy default, no action istaken when a type oftraffic reaches theupper threshold.Enable log/trap informationto be output when a type oftraffic received on the portexceeds the upperthreshold or falls below thelower thresholdstorm-constrain enable{ log | trap }OptionalEnabled by default.Return to system view quit —Set the interval at which theport collects traffic statisticsstorm-constrain intervalinterval-valueOptionalIt is 10 seconds bydefault.Note:z If the broadcast-suppression command, multicast-suppression command orunicast suppression command is configured on a port, you cannot configure thestorm control function on the port, and vice versa.z You are not recommended to set the upper and lower traffic thresholds to the samevalue.z If you specify the block keyword when executing the storm-constrain controlcommand, only the packets beyond the upper thresholds are blocked when theoverall traffic exceeds the upper threshold. In this case, the blocked packets are stilltaken into account when generating traffic statistics. If you specify the shutdownkeyword when executing the command, the port will be shut down when the trafficpassing through the port exceeds the upper threshold. You bring up the port againby executing the undo shutdown or the undo storm-constrain { all | broadcast |multicast | unicast } command.1.1.13 Setting the Port State Change DelayDuring a short period after you connect your switch to another device, the connectingport may go up and down frequently due to hardware compatibility, resulting in serviceinterruption.To avoid situations like this, you may introduce a port state change delay.

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