H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – MSTP
H3C S7500E Series Ethernet Switches Chapter 1 MSTP Configuration
1-49
To do... Use the command... Remarks
Configure the maximum
number of times the device
deletes forwarding address
entries within a certain period
of time immediately after it
receives TC-BPDUs
stp tc-protection
threshold number
Optional
6 by default
 Note:
We recommend that you keep this feature enabled.
1.9 Displaying and Maintaining MSTP
To do... Use the command... Remarks
View the information about
abnormally blocked ports
display stp abnormal-port
Available in any
view
View the information about
ports blocked by STP
protection actions
display stp down-port
Available in any
view
View the information of port
role calculation history for the
specified MSTP instance or
all MSTP instances
display stp [ instance
instance-id ] history [ slot
slot-number ]
Available in any
view
View the statistics of TC/TCN
BPDUs sent and received by
all ports in the specified
MSTP instance or all MSTP
instances
display stp [ instance
instance-id ] tc [ slot
slot-number ]
Available in any
view
View the status information
and statistics information of
MSTP
display stp [ instance
instance-id ] [ interface
interface-list | slot
slot-number ] [ brief ]
Available in any
view
View the information about
MST region configuration in
effect
display stp
region-configuration
Available in any
view
View root bridge information
of all MSTP instances
display stp root
Available in any
view
Clear the statistics
information of MSTP
reset stp [ interface
interface-list ]
Available in user
view