Managed Switch CLI Manual, Release 8.0.3
Switching Commands
3-25
v1.0, July 2010
show spanning-tree interface
This command displays the settings and parameters for a specific switch port within the common
and internal spanning tree. The
<unit/slot/port
> is the desired switch port. The following
details are displayed on execution of the command.
Format
show spanning-tree interface
<unit/slot/port>
Mode
• Privileged EXEC
• User EXEC
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.