Display Stp Bpdu-Statistics - H3C S5120-EI Series Command Reference Manual

include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case sensitive string of 1 to 256 characters.
Description
Use the display stp abnormal-port command to display information about ports blocked by the following
STP protection functions:
Root guard function
•
Loop guard function
•
MSTP BPDU format incompatibility protection function
•
Examples
# Display information about ports blocked by STP protection functions.
<Sysname> display stp abnormal-port
MSTID
1
2
2
Table 25 Output description
Field
Blocked Port
Reason

display stp bpdu-statistics

Syntax
display stp bpdu-statistics [ interface interface-type interface-number [ instance instance-id ] ] [ | { begin
| exclude | include } regular-expression ]
View
Any view
Default level
1: Monitor level
Parameters
interface interface-type interface-number: Displays the BPDU statistics on a specified port, where
interface-type interface-number indicates the port type and number.
instance instance-id: Displays the BPDU statistics of a specified MSTI on a specified port. The instance-id
argument ranges from 0 to 16, where 0 represents the CIST.
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
Blocked Port
GigabitEthernet1/0/1
GigabitEthernet1/0/2
GigabitEthernet1/0/3
Description
Name of a blocked port, which corresponds to the related MSTI.
Reason that the port was blocked.
•
ROOT-Protected—Root guard function
•
LOOP-Protected—Loop guard function
•
Formatcompatibility-Protected—MSTP BPDU format incompatibility protection function
Reason
ROOT-Protected
LOOP-Protected
Formatcompatibility–Protected
100