Administrator Guide

Spanning Tree Protocol (STP)
The commands in this section configure and monitor the IEEE 802.1d spanning tree protocol (STP) and are supported on the Dell EMC
Networking switch/routing platform.
Topics:
• bridge-priority
• bpdu-destination-mac-address
• debug spanning-tree
• description
• disable
• forward-delay
• hello-time
• max-age
• protocol spanning-tree
• show config
• show spanning-tree 0
• spanning-tree
bridge-priority
Set the bridge priority of the switch in an IEEE 802.1D spanning tree.
Syntax
bridge-priority {priority-value | primary | secondary}
To return to the default value, use the no bridge-priority command.
Parameters
priority-value Enter a number as the bridge priority value. The range is from 0 to 65535. The default is
32768.
primary Enter the keyword primary to designate the bridge as the root bridge.
secondary Enter the keyword secondary to designate the bridge as a secondary root bridge.
Defaults priority-value = 32768
Command Modes SPANNING TREE (The prompt is “config-stp”.)
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100–ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
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