Dell PowerEdge M420 Reference Manual page 688

Command Mode
Privileged EXEC mode
User Guidelines
The following fields are displayed:
Field
Spanning Tree Admin
Mode
Spanning Tree Version
BPDU Protection Mode
BPDU Filter Mode
BPDU Flooding Mode
Configuration Name
Configuration Revision
Level
Configuration Digest Key
Configuration Format
Selector
MST Instances
Example
console#show spanning-tree summary
Spanning Tree Adminmode........... Enabled
Spanning Tree Version............. IEEE 802.1w
BPDU Guard Mode................... Disabled
BPDU Flood Mode................... Disabled
688
Spanning Tree Commands
Description
Enabled or disabled
Version of 802.1 currently supported (IEEE 802.1s,
IEEE 802.1w, or IEEE 802.1d) based upon the mode
parameter.
Enabled or disabled.
Enabled or disabled.
Enabled or disabled.
Identifier used to identify the configuration currently
being used.
Identifier used to identify the configuration currently
being used.
A generated Key used in the exchange of the BPDUs.
Specifies the version of the configuration format being
used in the exchange of BPDUs. The default value is
zero.
List of all multiple spanning tree instances configured
on the switch.