Command Manual (For Soliton) – MSTPH3C S3100 Series Ethernet Switches Chapter 1 MSTP Configuration Commands1-55operation for limited times (up to six times by default) regardless of the number of theTC-BPDUs it receives. Such a mechanism prevents a switch from being busy inremoving the MAC address table and ARP entries.You can use the stp tc-protection threshold command to set the maximum times for aswitch to remove the MAC address table and ARP entries in a specific period. Whenthe number of the TC-BPDUs received within a period is less than the maximum times,the switch performs a removing operation upon receiving a TC-BPDU. After the numberof the TC-BPDUs received reaches the maximum times, the switch stops performingthe removing operation. For example, if you set the maximum times for a switch toremove the MAC address table and ARP entries to 100 and the switch receives 200TC-BPDUs in the period, the switch removes the MAC address table and ARP entriesfor only 100 times within the period.Examples# Set the maximum times for a switch to remove the MAC address table and ARPentries within 10 seconds to 5.system-viewSystem View: return to User View with Ctrl+Z.[Sysname] stp tc-protection threshold 51.1.50 stp timer forward-delaySyntaxstp timer forward-delay centi-secondsundo stp timer forward-delayViewSystem viewParameterscenti-seconds: Forward delay in centiseconds to be set. This argument ranges from400 to 3,000.DescriptionUse the stp timer forward-delay command to set the forward delay of the switch.Use the undo stp timer forward-delay command to restore the forward delay to thedefault value.By default, the forward delay of the switch is 1,500 centiseconds.To prevent the occurrence of temporary loops, when a port changes its state fromdiscarding to forwarding, it undergoes an intermediate state and waits for a specific
