Users Guide

Version Description
6.2.1.1 Introduced on the E-Series.
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.
cong (OPTIONAL) Enter the keyword config to debug conguration 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-specic. 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
9.8(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.
1760
Spanning Tree Protocol (STP)