display stp down-port

Syntax

display stp down-port [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

exclude: Displays all lines that do not match the specified regular expression.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display stp down-port to display information about ports shut down by spanning tree protection functions.

Examples

# Display information about ports shut down by spanning tree protection functions.

<Sysname> display stp down-port
 Down Port                   Reason
 Ethernet1/0/1               BPDU-Protected
 Ethernet1/0/2               Formatfrequency-Protected

Table 26: Command output

Field	Description
Down Port	Name of a port shut down by the spanning tree protection functions.
Reason	Reason that the port was shut down: BPDU-Protected—BPDU guard function. Formatfrequency-Protected—MSTP BPDU format frequent change protection function.

Field

Description

Down Port

Name of a port shut down by the spanning tree protection functions.

Reason

Reason that the port was shut down:

BPDU-Protected—BPDU guard function.
Formatfrequency-Protected—MSTP BPDU format frequent change protection function.

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