Reference Guide

show spanning-tree 0
Display the spanning tree group configuration and status of interfaces in the spanning tree group.
S4820T
Syntax
show spanning-tree 0 [active | brief | guard | interface
interface | root | summary]
Parameters
0 Enter 0 (zero) to display information about that specific
spanning tree group.
active (OPTIONAL) Enter the keyword active to display only active
interfaces in spanning tree group 0.
brief (OPTIONAL) Enter the keyword brief to display a synopsis
of the spanning tree group configuration information.
guard (OPTIONAL) Enter the keyword guard to display the type of
guard enabled on an STP interface and the current port state.
interface
interface
(OPTIONAL) Enter the keyword interface and the type
slot/port of the interface you want displayed. Type slot/port
options are the following:
• For a Port Channel interface, enter the keywords port-
channel then a number. The range is from 1 to 128.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE then the slot/port information.
root (OPTIONAL) Enter the keyword root to display configuration
information on the spanning tree group root.
summary (OPTIONAL) Enter the keyword summary to only the number
of ports in the spanning tree group and their state.
Command
Modes
EXEC Privilege
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 9.0.2.0 Introduced on the S6000.
Version
8.3.19.0
Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.5.1.0 Added support for 4-port 40G line cards on the E-Series
ExaScale.
1640
Spanning Tree Protocol (STP)