1-29 system-viewSystem View: return to User View with Ctrl+Z.[Sysname]stp interface Ethernet1/0/1 no-agreement-checkstp pathcost-standardSyntaxstp pathcost-standard { dot1d-1998 | dot1t | legacy }undo stp pathcost-standardViewSystem viewParametersdot1d-1998: The device calculates the default path cost for ports based on IEEE 802.1d-1998.dot1t: The device calculates the default path cost for ports based on IEEE 802.1t.legacy: The device calculates the default path cost for ports based on a private standard.DescriptionUse the stp pathcost-standard command to set the standard to be used to calculate the default pathcosts of the links connected to the switch.Use the undo stp pathcost-standard command to specify to use the default standard.By default, the device calculates the default path cost for ports based on a private standard. STP usespath costs to indicate the quality of links. A smaller path cost indicates a higher link quality. The pathcost of a port is related to the rate of the link connecting the port. The higher the link rate, the smaller thepath cost. The path cost of a port may vary when different standards are used to calculate it. For details,see Table 1-8.Table 1-8 Link speeds and the corresponding path costsLink speed Duplex statePath cost in802.1d-1998standardPath cost inIEEE 802.1tstandardPath cost inprivatestandard0 — 65,535 200,000,000 200,00010 MbpsHalf-duplex/Full-duplexAggregated link 2 portsAggregated link 3 portsAggregated link 4 ports100959595200,0001,000,000666,666500,0002,0001,8001,6001,400100 MbpsHalf-duplex/Full-duplexAggregated link 2 portsAggregated link 3 portsAggregated link 4 ports19151515200,000100,00066,66650,0002001801601401,000 MbpsFull-duplexAggregated link 2 portsAggregated link 3 portsAggregated link 4 ports4333200,00010,0006,6665,00020181614
