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spanning-tree protocol-migration
Use this command to re-check the appropriate BPDU format to send on
the selected interface.
Syntax
spanning-tree protocol-migration interface
interface
• ethernet unit/port
- unit - This is device 1.
- port - Port number.
• port-channel channel-id (Range: 1-6)
Command Mode
Privileged Exec
Command Usage
If at any time the switch detects STP BPDUs, including Configuration
or Topology Change Notification BPDUs, it will automatically set the
selected interface to forced STP-compatible mode. However, you can
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
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree protocol-migration
Console(config-if)#