Administrator Guide

Version Description
8.3.7.0 Introduced on the S4810.
7.7.1.0 Introduced
Related
Commands
protocol spanning-tree — enters SPANNING TREE mode on the switch.
disable
Disable the spanning tree protocol globally on the switch.
C9000 Series
Syntax
disable
To enable Spanning Tree Protocol, use the no disable command.
Defaults Enabled (that is, the spanning tree protocol is disabled.)
Command Modes SPANNING TREE
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.7.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.2.1.1 Introduced on the E-Series.
Related
Commands
protocol spanning-tree — enters SPANNING TREE mode on the switch.
forward-delay
The amount of time the interface waits in the Listening state and the Learning state before transitioning to the Forwarding
state.
C9000 Series
Syntax
forward-delay seconds
To return to the default setting, use the no forward-delay command.
Parameters
seconds Enter the number of seconds the system waits before transitioning STP to the
Forwarding state. The range is from 4 to 30. The default is 15 seconds.
Spanning Tree Protocol (STP) 1667