Spanning-Tree Operation 
Configuring Rapid Reconfiguration Spanning Tree (RSTP) 
CLI: Configuring RSTP 
Spanning Tree Commands in This Section  STP  RSTP  Page for RSTP Use 
show spanning-tree config  Y  Y 
spanning-tree  Y  Y 
protocol-version <rstp | stp>  Y  Y 
force-version  N  Y 
<rstp-operation | stp-compatible> 
forward-delay <4 - 30> 
hello-time <1 - 10> 
maximum-age <6 - 40> 
priority <0 - 15 | 0 - 65535> 
<[ethernet] port-list> 
path-cost <1 - 200 000 000> 
priority <0 - 15 | 0 - 65535> 
edge-port 
point-to-point-mac 
mcheck 
mode <norm | fast> 
show spanning-tree 
Y Y 
Y Y 
Y Y 
Y Y 
Y Y 
Y Y 
Y Y 
N Y 
N Y 
N Y 
Y N 
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Refer to “802.1D Spanning-
Tree Protocol (STP)” on 
page 6-21. 
This command lists additional RSTP/STP/ 
MSTP monitoring data that is not covered in 
this section. Refer to the section titled 
“Spanning Tree Protocol Information” in the 
“Monitoring and Analyzing Switch 
Operation” appendix of the Management and 
Configuration Guide for your switch. 
Viewing the Current Spanning Tree Configuration.  Use this command 
to display the current spanning tree configuration. 
Syntax:  show spanning-tree config 
Lists the switch’s full spanning tree configuration, 
including whole-switch and per-port settings, regardless 
of whether spanning tree is disabled. 
(Default: n/a; Abbreviated Command: sho span config) 
In the default configuration, the output from this command appears similar to 
the following: 
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