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Chapter 42: STP Commands
592
SHOW SPANNING-TREE
Syntax
show spanning-tree [interface
port
]
Parameters
port
Specifies a port. You can specify more than one port at a time in
the command. The switch displays the STP settings for all the
ports if you omit this parameter.
Modes
Privileged Exec mode
Description
Use this command to display the STP settings on the switch. An example
of the display is shown in Figure 119.
Figure 119. SHOW SPANNING-TREE Command for STP
% Default: Spanning Tree up - Enabled
% Default: Priority 32768
% Default: Forward Delay 15 - Hello Time 2 - Max Age 20- Root port 0
% Default: Root Id 8000:00153355ede1
% Default: Bridge Id 8000:00153355ede1
% Default: portfast bpdu-guard disabled
% Default: portfast bpdu-filter disabled
% Default: portfast errdisable timeout disabled
% Default: portfast errdisable timeout interval 300 sec
% port1.0.1: Port Id 8001 - Role Disabled - State Disabled
% port1.0.1: Designated Path Cost 0
% port1.0.1: Configured Path Cost 2000000 - Add type Explicit ref count 1
% port1.0.1: Designated Port Id 8001 - Priority 128 -
% port1.0.1: Root 8000:000000000000
% port1.0.1: Designated Bridge 8000:000000000000
% port1.0.1: Max Age 20
% port1.0.1: Hello Time 2 - Forward Delay 15
% port1.0.1: Version Spanning Tree Protocol
% port1.0.1: Current portfast off
% port1.0.1: Current loop-guard off
% port1.0.1: Current portfast bpdu-guard off
% port1.0.1: Current portfast bpdu-filter off
% port1.0.1: Current root-guard off
% port1.0.1: Configured Link Type auto