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also use the spanning-tree protocol-migration command at any time
to manually re-check the appropriate BPDU format to send on the
selected interfaces (i.e., RSTP or STP-compatible).
Example
show spanning-tree
This command shows the configuration for the common spanning tree
(CST) or for an instance within the multiple spanning tree (MST).
Syntax
show spanning-tree [interface | mst instance_id]
• interface
• ethernet unit/port
- unit - This is unit 1.
- port - Port number. (Range: 1-8)
• port-channel channel-id (Range: 1-4)
• instance_id - Instance identifier of the multiple spanning tree.
(Range: 0-4094, no leading zeroes)
Default Setting
None
Command Mode
Privileged Exec
Command Usage
•Use the show spanning-tree command with no parameters to display
the spanning tree configuration for the switch for the Common
Spanning Tree (CST) and for every interface in the tree.
•Use the show spanning-tree interface command to display the
spanning tree configuration for an interface within the Common
Spanning Tree (CST).
Console#spanning-tree protocol-migration eth 1/5
Console#