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Configuring the Switch
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3
Command Attributes
• MST Instance – Instance identifier of this spanning tree. (Default: 0)
• Priority – The priority of a spanning tree instance. (Range: 0-61440 in steps of
4096; Options: 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672, 32768, 36864,
40960, 45056, 49152, 53248, 57344, 61440; Default: 32768)
• VLANs in MST Instance – VLANs assigned to this instance.
• MST ID – Instance identifier to configure. (Range: 0-57; Default: 0)
• VLAN ID – VLAN to assign to this selected MST instance. (Range: 1-4092)
Web – Click Spanning Tree, MSTP, VLAN Configuration. Select an instance
identifier from the list, set the instance priority, and click Apply. To add the VLAN
members to an MSTI instance, enter the instance identifier, the VLAN identifier, and
click Add.
Figure 3-91 Configuring Multiple Spanning Trees
CLI – This example sets the priority for MSTI 1, and adds VLANs 1-5 to this MSTI.
Console(config)#spanning-tree mst configuration 4-223
Console(config-mst)#mst 1 priority 4096 4-225
Console(config-mstp)#mst 1 vlan 1-5 4-224
Console(config-mst)#