Command Line Reference Guide

Spanning Tree Protocol (STP) | 1435
Parameters
Command Modes
EXEC Privilege
Command
History
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
description
c e s
Enter a description of the Spanning Tree
Syntax
description {description}
To remove the description from the Spanning Tree, use the no description {description} command.
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.
interface
(OPTIONAL) Enter the following keywords and slot/port or number information:
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet
followed by the slot/port information.
• For the Management interface, enter the keyword
ManagementEthernet
followed by the slot/port information. The slot range is 0 and the port range is
0-1.
• For a Port Channel interface, enter the keyword
port-channel followed by a
number:
C-Series and S-Series Range: 1-128
E-Series Range: 1 to 32 for EtherScale, 1 to 255 for TeraScale and 1 to 512 for
ExaScale.
• For a SONET interface, enter the keyword
sonet followed by the slot/port
information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet followed by the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE followed
by the slot/port information.
• For VLAN, enter the keyword
vlan followed by a number from 1 to 4094.
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.
Version 8.4.6.0
Added support for the keyword
fortyGigE.
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
protocol spanning-tree Enter SPANNING TREE mode on the switch.