Enabling Spanning Tree Protocol Globally - Dell S4820T Configuration Manual

3. Enable the interface.
INTERFACE mode
no shutdown
Example of the show config Command
To verify that an interface is in Layer 2 mode and enabled, use the show config command from
INTERFACE mode.
Dell(conf-if-te-1/1)#show config
!
interface TenGigabitEthernet 1/1
no ip address
switchport
no shutdown
Dell(conf-if-te-1/1)#

Enabling Spanning Tree Protocol Globally

Enable the spanning tree protocol globally; it is not enabled by default.
When you enable STP, all physical, VLAN, and port-channel interfaces that are enabled and in Layer 2
mode are automatically part of the Spanning Tree topology.
• Only one path from any bridge to any other bridge participating in STP is enabled.
• Bridges block a redundant path by disabling one of the link ports.
Spanning Tree Protocol (STP)
985