Display Stp Down-Port - H3C S7500E Series Command Manual

Command Manual – MSTP
H3C S7500E Series Ethernet Switches
2 GigabitEthernet2/0/2
2 GigabitEthernet2/0/3
Table 1-3 Description on the fields of the display stp abnormal-port command
MSTID
Blocked Port
Reason

1.1.5 display stp down-port

Syntax
display stp down-port
View
Any view
Parameters
None
Description
Use the display stp down-port command to view the information about ports blocked
by STP protection actions.
These actions include:
BPDU attack guard action
MSTP BPDU format compatibility protection action
Examples
# View the information about ports blocked by STP protection actions.
<Sysname> display stp down-port
Down Port
GigabitEthernet2/0/1
GigabitEthernet2/0/2
Field
spanning tree instance ID
Name of blocked port, which corresponds to the related
spanning tree instance
Reason that caused abnormal blocking of the port.
ROOT-Protected: root guard action
LOOP-Protected: loop guard action
Formatcompatibility-Protected: MSTP BPDU format
compatibility protection action
Chapter 1 MSTP Configuration Commands
LOOP-Protected
Formatcompatibility–Protected
Description
Reason
BPDU-Protected
Formatfrequency-Protected
1-6