Users Guide

no ip address
2 Place the interface in Layer 2 mode.
INTERFACE mode
switchport
3 Enable the interface.
INTERFACE mode
no shutdown
Example of Verifying an Interface is in Layer 2 Mode and Enabled
To verify that an interface is in Layer 2 mode and enabled, use the show config command from INTERFACE
mode. The bold lines indicate that the interface is in Layer 2 mode.
Dell(conf-if-gi-1/1)#show config
!
interface GigabitEthernet 1/1
no ip address
switchport
no shutdown
Dell(conf-if-gi-1/1)#
Enabling Rapid Spanning Tree Protocol
Globally
Enable RSTP globally on all participating bridges; it is not enabled by default.
When you enable RSTP, all physical and port-channel interfaces that are enabled and in Layer 2 mode are
automatically part of the RST topology.
• Only one path from any bridge to any other bridge is enabled.
• 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.
Rapid Spanning Tree Protocol (RSTP) 806