D-Link DXS-3600-32S CLI Guide - Page 566

DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide Parameters hello-time SECONDS forward-time SECONDS max-age SECONDS Specifies the time interval to send one BPDU at the Designated Port. The default setting is 2 seconds. The range is 1 to 2 seconds. Note: This timer cannot be configured in MSTP mode. Specifies the maximum time (in seconds) the device will wait before changing states (i.e., from the listening to learning to forwarding). The default setting is 15 seconds. The range is 4 to 30 seconds. Specifies the maximum aging time (in seconds) of the BPDU message. The default setting is 20 seconds.The range is 6 to 40 seconds. Default Command Mode Command Default Level Usage Guideline The default value of hello-time is 2. The default value of forward-time is 15. The default value of max-age is 20. Global Configuration Mode. Level: 8 There are some constraints on the relationship of the three timers. Please refer to the following formulas : • 2 × (Bridge_Forward_Delay - 1.0 seconds) >= Bridge_Max_Age • Bridge_Max_Age >= 2 × (Bridge_Hello_Time + 1.0 seconds) Parameters cannot be applied if the equation is not satisfied. Example This example shows how to configure the STP timer. DXS-3600-32S#configure terminal DXS-3600-32S(config)#spanning-tree hello-time 1 Success DXS-3600-32S(config)#spanning-tree forward-time 16 Success DXS-3600-32S(config)#spanning-tree max-age 21 Success DXS-3600-32S(config)# 57-4 spanning-tree tx-hold-count This command is used to limit the maximum BPDU transmission rate for every port. Use the no form of this command to return the setting to default setting. spanning-tree transmit-hold-count TX-HOLD-COUNT no spanning-tree transmit-hold-count Parameters TX-HOLD-COUNT Specifies the value to restrict the numbers of BPDU transmitted on a port in the period of a Hello Time. The range is 1 to 10. Default Command Mode The default value is 6. Global Configuration Mode. 558