Operation Manual – MSTPH3C S3100 Series Ethernet Switches Chapter 1 MSTP Configuration1-47[Sysname-Ethernet1/0/1] stp root-protection1.6.5 Configuring Loop GuardI. Configuration procedureTable 1-39 Configure loop guardOperation Command DescriptionEnter system view system-view —Enter Ethernet port view interface interface-typeinterface-number —Enable the loop guardfunction on the currentportstp loop-protectionRequiredThe loop guard function isdisabled by default.II. Configuration example# Enable the loop guard function on Ethernet 1/0/1. system-view[Sysname] interface Ethernet1/0/1[Sysname-Ethernet1/0/1] stp loop-protection1.6.6 Configuring TC-BPDU Attack GuardI. Configuration prerequisitesMSTP runs normally on the switch.II. Configuration procedureTable 1-40 Configure the TC-BPDU attack guard functionOperation Command DescriptionEnter system view system-view —Enable the TC-BPDUattack guard function stp tc-protection enableRequiredThe TC-BPDU attackguard function is disabledby default.Set the maximum timesthat a switch can removethe MAC address tablewithin each 10 secondsstp tc-protectionthreshold number Optional
