Reference Guide

1464 | Spanning Tree Protocol (STP)
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Parameters
Defaults
priority-value
= 32768
Command Modes
SPANNING TREE (The prompt is “config-stp”.)
Command
History
debug spanning-tree
c e s
Enable debugging of 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, enter
no debug spanning-tree.
Parameters
Command Modes
EXEC Privilege
priority-value
Enter a number as the bridge priority value.
Range: 0 to 65535.
Default: 32768.
primary
Enter the keyword primary to designate the bridge as the root bridge.
secondary
Enter the keyword secondary to designate the bridge as a secondary
root bridge.
Version 8.3.19.0 Introduced on S4820T
Version 8.3.7.0 Introduced on S4810
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
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.