TP-Link T2600G-18TSTL-SG3216 T2600G-18TSUN V1 Configuration Guide - Page 344

Configuring Spanning Tree MSTP Configurations 3.1.3 Configuring MSTP Globally Choose the menu Spanning Tree > STP Config > STP Config to load the following page. Figure 3-5 Configure MSTP Function Globally Follow these steps to configure MSTP globally: 1) In the Parameters Config section, Configure the global parameters of MSTP and click Apply. CIST Priority Enter a value from 0 to 61440 to specify the CIST priority of the switch, which is divisible by 4096, and the default value is 32768. The switch with the lower value has the higher priority. CIST priority is the priority of a switch in CIST. The switch with the highest priority will be elected as the root bridge. Hello Time Specify the interval to send BPDUs. The valid values are from 1 to 10 in seconds, and the default value is 2. Max Age Specify the maximum time the switch can wait without receiving a BPDU before attempting to regenerate a spanning tree. The valid values are from 6 to 40 in seconds, and the default value is 20. Forward Delay Specify the time for the port to transit its state after the network topology is changed. The valid values are from 4 to 30 in seconds, and the default value is 15. TxHoldCount Specify the maximum BPDU transmission rate of a port. The valid values are from 1 to 20, and the default value is 5. Max Hops Specify the maximum number of hops that occur in a specific region before the BPDU is discarded. The valid values are from 1 to 40, and the default value is 20. Configuration Guide 314