Dell Force10 Z9000 Configuration Manual page 621

• Bridges block a redundant path by disabling one of the link ports.
To enable RSTP globally for all Layer 2 interfaces, use the following commands.
1. Enter PROTOCOL SPANNING TREE RSTP mode.
CONFIGURATION mode
protocol spanning-tree rstp
2. Enable RSTP.
PROTOCOL SPANNING TREE RSTP mode
no disable
Examples of the RSTP show Commands
To disable RSTP globally for all Layer 2 interfaces, enter the disable command from PROTOCOL SPANNING TREE RSTP mode.
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.
Dell(conf-rstp)#show config
!
protocol spanning-tree rstp
no disable
Dell(conf-rstp)#
Figure 98. 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.
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
Rapid Spanning Tree Protocol (RSTP)
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