Operation Manual – 802.1x-System GuardH3C S3100 Series Ethernet Switches Chapter 5 System-Guard Configuration (For S3100-SI)5-1Chapter 5 System-Guard Configuration (ForS3100-SI)Note:The configuration introduced in this chapter is only supported by the S3100-SI seriesswitches.5.1 System-Guard OverviewThe system-guard function checks system-guard-enabled ports regularly to determineif the ports are under attack. With this function enabled, if the number of the packetsreceived by a system-guard-enabled port exceeds the set threshold, the port isregarded to be under attack. The switch then limits the rate of the port and resumes portchecking operation after a specific period elapses.5.2 System-Guard ConfigurationThe system guard configuration includes:z Enabling the system-guard functionz Configuring system-guard-related parametersz Specifying system-guard-enabled ports5.2.1 Enabling the System-Guard functionTable 5-1 lists the operations to enable the system-guard function.Table 5-1 Enable the system-guard functionOperation Commands DescriptionEnter system view system-view —Enable thesystem-guard function system-guard enableRequiredBy default, The system-guardfunction is disabled.