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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.
events (OPTIONAL) Enter the keyword events to debug STP events.
Command Modes EXEC Privilege
Supported Modes Full–Switch Mode
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
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
portfast bpdufilter default — enters SPANNING TREE mode on the switch.
description
Enter a description of the spanning tree.
Syntax
description {description}
To remove the description from the spanning tree, use the no description {description}
command.
Parameters
description Enter a description to identify the spanning tree (80 characters maximum).
Defaults none
Command Modes SPANNING TREE (The prompt is “config-stp”.)
Supported Modes Full–Switch Mode
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Related
Commands
portfast bpdufilter default — enters SPANNING TREE mode on the switch.
disable
Disable the spanning tree protocol globally on the switch.
Syntax
disable
To enable Spanning Tree Protocol, use the no disable command.
Defaults Enabled (that is, the spanning tree protocol is disabled.)
Command Modes SPANNING TREE
Supported Modes Full–Switch Mode
Command
History
Version Description
Spanning Tree Protocol (STP) 1149