Qtech QSW-8200-28T-AC Команды для mstp онлайн [15/23] 481626

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User Manual

Chapter 1. Commands for MSTP 15

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 Usage Guide: The command can avoid root port or alternate port to be changed as

designated port due to invalid unilateralism link. When the receiving timer is time, the

configured port with loopguard is set as block state.

 Example: Configure port 1/0/2 as loopguard mode for instance 0.

 Switch(Config)#interface ethernet 1/0/2

 Switch(Config-Ethernet-1/0/2)#spanning-tree mst 0 loopguard

 Switch(Config-Ethernet-1/0/2)#

1.1.23 spanning-tree mst port-priority

 Command: spanning-tree mst <instance-id> port-priority <port-priority>

 no spanning-tree mst <instance-id> port-priority

 Function: Set the current port priority for the specified instance; the command “no

spanning-tree mst <instance-id> port-priority” restores the default setting.

 Parameter: <instance-id> sets the instance ID. The valid range is from 0 to 64; <port-

priority> sets port priority. The valid range is from 0 to 240. The value should be the

multiples of 16, such as 0, 16, 32…240.

 Command mode: Port Mode

 Default: The default port priority is 128.

 Usage Guide: By setting the port priority, users can control the port ID of the instance

in order to control the root port and designated port of the instance. The lower the

value of the port priority is, the higher the priority is.

 Example: Set the port priority as 32 on the port 1/0/2 for the instance 1.

 Switch(config)#interface ethernet 1/0/2

 Switch(Config-If-Ethernet1/0/2)#spanning-tree mst 1 port-priority 32

1.1.24 spanning-tree mst priority

 Command: spanning-tree mst <instance-id> priority <bridge-priority>

 no spanning-tree mst <instance-id> priority

 Function: Set the bridge priority for the specified instance; the command “no spanning-

tree mst <instance-id> priority” restores the default setting.

 Parameter: <instance-id> sets instance ID. The valid range is from 0 to 64; <bridge-

priority> sets the switch priority. The valid range is from 0 to 61440. The value should

be the multiples of 4096, such as 0, 4096, 8192…61440.

 Command mode: Global Mode

 Default: The default bridge priority is 32768.

 Usage Guide: By setting the bridge priority, users can change the bridge ID for the

specified instance. And the bridge ID can influence the elections of root bridge and

designated port for the specified instance.

 Example: Set the priority for Instance 2 to 4096.

 Switch(config)#spanning-tree mst 2 priority 4096