Reference Guide

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spanning-tree
Enable the multiple spanning tree protocol on the interface.
Z9500
Syntax
spanning-tree
To disable the multiple spanning tree protocol on the interface, use the no spanning-tree command.
Parameters
spanning-tree Enter the keywords spanning-tree to enable the MSTP on the interface.
Defaults Enable.
Command Modes INTERFACE
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
9.2(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.
6.2.1.0 Introduced on the E-Series.
spanning-tree msti
Configure multiple spanning tree instance cost and priority for an interface.
Z9500
Syntax
spanning-tree msti instance {cost cost | priority priority}
Parameters
msti instance Enter the keyword msti and the MST instance number. The range is from zero (0)
to 63.
cost cost (OPTIONAL) Enter the keyword cost then the port cost value. The range is from 1
to 200000. The defaults are:
● 10-Gigabit Ethernet interface = 2000
● Port Channel interface with one 10 Gigabit Ethernet = 2000
● Port Channel with two 10 Gigabit Ethernet = 1800
priority priority Enter keyword priority then a value in increments of 16 as the priority. The
range is from 0 to 240. The default is 128.
938 Multiple Spanning Tree Protocol (MSTP)