Show Spanning-Tree - SMC Networks TigerStack II SMC8848M Management Manual

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#spanning-tree protocol-migration eth 1/5
Console#

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
• port-channel channel-id (Range: 1-32)
• 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.
- unit - Stack unit. (Range: 1-8)
- port - Port number. (Range: 1-26/50)
SHOW SPANNING
-
TREE
29-25