Switching Commands
40
M4100 Series ProSAFE Managed Switches
show spanning-tree interface
This command displays the settings and parameters for a specific switch port within the
Common and Internal Spanning Tree. The <slot/port> is the desired switch port. The
following details are displayed on execution of the command.
• Privileged EXEC
• User EXEC
Format show spanning-tree interface <slot/port>
Mode
Term Definition
Hello Time Admin hello time for this port.
Port Mode Enabled or disabled.
BPDU Guard Effect Enabled or disabled.
Root Guard Enabled or disabled.
Loop Guard Enabled or disabled.
TCN Guard Enable or disable the propagation of received topology change notifications and
topology changes to other ports.
BPDU Filter Mode Enabled or disabled.
BPDU Flood Mode Enabled or disabled.
Auto Edge To enable or disable the feature that causes a port that has not seen a BPDU for
‘edge delay’ time, to become an edge port and transition to forwarding faster.
Port Up Time Since
Counters Last Cleared
Time since port was reset, displayed in days, hours, minutes, and seconds.
STP BPDUs Transmitted Spanning Tree Protocol Bridge Protocol Data Units sent.
STP BPDUs Received Spanning Tree Protocol Bridge Protocol Data Units received.
RSTP BPDUs
Transmitted
Rapid Spanning Tree Protocol Bridge Protocol Data Units sent.
RSTP BPDUs Received Rapid Spanning Tree Protocol Bridge Protocol Data Units received.
MSTP BPDUs
Transmitted
Multiple Spanning Tree Protocol Bridge Protocol Data Units sent.
MSTP BPDUs Received Multiple Spanning Tree Protocol Bridge Protocol Data Units received.
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