1-43To do... Use the command... RemarksEnter system view system-view —Enable the TC-BPDU attackguard function stp tc-protection enable OptionalEnabled by defaultConfigure the maximumnumber of forwarding addressentry flushes that the devicecan perform within a specifictime period after it receives thefirst TC-BPDUstp tc-protection thresholdnumberOptional6 by defaultWe recommend that you keep this feature enabled.Displaying and Maintaining MSTPTo do... Use the command... RemarksView information about abnormallyblocked ports display stp abnormal-port Available in any viewView information about ports blockedby STP protection functions display stp down-port Available in any viewView the historical information of portrole calculation for the specified MSTIor all MSTIsdisplay stp [ instanceinstance-id ] history Available in any viewView the statistics of TC/TCN BPDUssent and received by all ports in thespecified MSTI or all MSTIsdisplay stp [ instanceinstance-id ] tc Available in any viewView the status information andstatistics information of MSTPdisplay stp [ instanceinstance-id ] [ interfaceinterface-list ] [ brief ]Available in any viewView the MST region configurationinformation that has taken effect display stp region-configuration Available in any viewView the root bridge information of allMSTIs display stp root Available in any viewView the list of VLANs with VLANIgnore enabled display stp ignored-vlan Available in any viewClear the statistics information ofMSTP reset stp [ interface interface-list ] Available in user view
