Dell Command Line Reference Guide for the S4048–ON System 9.14.2.5

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debug spanning-tree

Enable debugging of the spanning tree protocol and view information on the protocol.

Syntax
debug spanning-tree {stp-id [all | bpdu | config | events | exceptions | general | root] | protocol}

To disable debugging, use the no debug spanning-tree command.

Parameters
stp-id
Enter zero (0). The switch supports one spanning tree group with a group ID of 0.
protocol
Enter the keyword for the type of STP to debug, either mstp, pvst, or rstp.
all
(OPTIONAL) Enter the keyword all to debug all spanning tree operations.
bpdu
(OPTIONAL) Enter the keyword bpdu to debug bridge protocol data units.
config
(OPTIONAL) Enter the keyword config to debug configuration information.
events
(OPTIONAL) Enter the keyword events to debug STP events.
general
(OPTIONAL) Enter the keyword general to debug general STP operations.
root
(OPTIONAL) Enter the keyword root to debug STP root transactions.
Command Modes
EXEC Privilege
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.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
8.3.11.1
Introduced on the Z9000.
8.3.7.0
Introduced on the S4810.
7.7.1.0
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
When you enable debug spanning-tree bpdu for multiple interfaces, the software only sends information on BPDUs for the last interface specified.
Related Commands

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