S
PANNING
T
REE
C
OMMANDS
4-195
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
show spanning-tree
This command shows the configuration for the spanning tree.
Syntax
show spanning-tree [interface]
interface
• ethernet unit/port
- unit - This is device 1.
- port - Port number. (Range: 1-26/52)
• port-channel channel-id (Range: 1-4)
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 and for every
interface in the tree.
•Use the show spanning-tree interface command to display the
spanning tree configuration for a specific interface.
Console#spanning-tree protocol-migration ethernet 1/5
Console#
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