Command Line Reference Guide

Spanning Tree Protocol (STP) | 1345
60
Spanning Tree Protocol (STP)
Overview
The commands in this chapter configure and monitor the IEEE 802.1d Spanning Tree protocol (STP)
and are supported on all three Dell Force10 switch/routing platforms, as indicated by the
c, e, and
s characters under the command headings:
Commands
• 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
c e s
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, enter no bridge-priority.
Parameters
Defaults
priority-value = 32768
Command Modes
SPANNING TREE (The prompt is “config-stp”.)
Command
History
priority-value
Enter a number as the bridge priority value.
Range: 0 to 65535.
Default: 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.
Version 7.7.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.2.1.1 Introduced on E-Series