Administrator Guide

Version Description
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.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.5.1.0 Introduced.
Usage
Information
For two MSTP switches to be within the same MSTP region, the switches must share the same region
name (including matching case).
Related
Commands
msti — maps the VLAN(s) to an MST instance.
revision — assigns the revision number to the MST configuration.
protocol spanning-tree mstp
To enable and configure the multiple spanning tree group, enter MULTIPLE SPANNING TREE mode.
C9000 Series
Syntax
protocol spanning-tree mstp
To disable the multiple spanning tree group, use the no protocol spanning-tree mstp command.
Defaults Not configured.
Command Modes CONFIGURATION
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.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.2.1.1 Introduced on the E-Series.
Usage
Information
MSTP is not enabled when you enter MULTIPLE SPANNING TREE mode. To enable MSTP globally on the
switch, enter the no disable command while in MULTIPLE SPANNING TREE mode.
For more information about the multiple spanning tree protocol, refer to the Dell Networking OS
Configuration Guide.
Example
Dell(conf)#protocol spanning-tree mstp
Dell(config-mstp)#no disable
1112 Multiple Spanning Tree Protocol (MSTP)