Users Guide

To verify that RSTP is enabled, use the show config command from PROTOCOL SPANNING TREE RSTP mode. The bold line indicates
that RSTP is enabled.
Example of Verifying that RSTP is Enabled
Dell(conf-rstp)#show config
!
protocol spanning-tree rstp
no disable
Dell(conf-rstp)#
Figure 104. Rapid Spanning Tree Enabled Globally
To view the interfaces participating in RSTP, use the show spanning-tree rstp command from EXEC privilege mode. If a physical
interface is part of a port channel, only the port channel is listed in the command output.
Example of the show spanning-tree rstp Command
Dell#show spanning-tree rstp
Root Identifier has priority 32768, Address 0001.e801.cbb4
Root Bridge hello time 2, max age 20, forward delay 15, max hops 0
Bridge Identifier has priority 32768, Address 0001.e801.cbb4
Configured hello time 2, max age 20, forward delay 15, max hops 0
We are the root
Current root has priority 32768, Address 0001.e801.cbb4
Number of topology changes 4, last change occurred 00:02:17 ago on TenGig 1/26
Port 377 (TenGigabitethernet 2/1) is designated Forwarding
Port path cost 20000, Port priority 128, Port Identifier 128.377
Designated root has priority 32768, address 0001.e801.cbb4
Designated bridge has priority 32768, address 0001.e801.cbb4
Designated port id is 128.377, designated path cost 0
Number of transitions to forwarding state 1
BPDU : sent 121, received 9
702
Rapid Spanning Tree Protocol (RSTP)