TP-Link T2600G-18TSTL-SG3216 T2600G-28MPSUN V2 CLI Reference Guide Guide - Page 316
spanning-tree common-config
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Privilege Requirement Only Admin, Operator and Power User level users have access to these commands. Example Enable the STP function for port 1/0/2: T2600G-28TS(config)# interface gigabitEthernet 1/0/2 T2600G-28TS(config-if)# spanning-tree 36.4spanning-tree common-config Description The spanning-tree common-config command is used to configure the parameters of the ports for comparison in the CIST and the common parameters of all instances. To return to the default configuration, please use no spanning-tree common-config command. CIST (Common and Internal Spanning Tree) is the spanning tree in a switched network, connecting all devices in the network. Syntax spanning-tree common-config [ port-priority pri ] [ ext-cost ext-cost ] [ int-cost int-cost ] [ portfast { enable | disable }] [ point-to-point { auto | open | close }] no spanning-tree common-config Parameter pri -- Port Priority, which must be multiple of 16 ranging from 0 to 240. By default, the port priority is 128. Port Priority is an important criterion on determining if the port connected to this port will be chosen as the root port. In the same condition, the port with the highest priority will be chosen as the root port. The lower value has the higher priority. ext-cost -- External Path Cost, which is used to choose the path and calculate the path costs of ports in different MST regions. It is an important criterion on determining the root port. The lower value has the higher priority. It ranges from o to 2000000. By default, it is 0 which is mean auto. int-cost -- Internal Path Cost, which is used to choose the path and calculate the path costs of ports in an MST region. It is an important criterion on determining the root port. The lower value has the higher priority. By 295
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