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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#
Summary of Contents for 6726AL2 FICHE
Page 2: ......
Page 20: ...CONTENTS xvi ...
Page 24: ...TABLES xx ...
Page 28: ...FIGURES xxiv ...
Page 38: ...INTRODUCTION 1 10 ...
Page 240: ...CONFIGURING THE SWITCH 3 190 ...
Page 502: ...TROUBLESHOOTING B 4 ...
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