HP A6600 Configuration Manual page 82

With the TC-BPDU guard function, set the maximum number of immediate forwarding address entry
flushes that the switch can perform within a certain period of time after receiving the first TC-BPDU. For
TC-BPDUs received in excess of the limit, the switch performs forwarding address entry flush only when
the time period expires. This prevents frequent flushing of forwarding address entries.
To enable TC-BPDU guard:
To do...
4. Enter system view
5. Enable the TC-BPDU guard function
6. Configure the maximum number of
forwarding address entry flushes that the
device can perform within a specific time
period after it receives the first TC-BPDU
NOTE:
HP recommends that you do not disable this feature.
Table 14 Displaying and maintaining MSTP
To do...
Display information about abnormally
blocked ports
Display BPDU statistics on ports
Display information about ports blocked
by STP protection functions
Display the historical information of port
role calculation for the specified MSTI or
all MSTIs (on a centralized device)
Display the historical information of port
role calculation for the specified MSTI or
all MSTIs (on a distributed device)
Display the statistics of TC/TCN BPDUs
sent and received by all ports in the
specified MSTI or all MSTIs (on a
centralized device)
Display the statistics of TC/TCN BPDUs
sent and received by all ports in the
specified MSTI or all MSTIs (on a
distributed device)
Display the status and statistics of MSTP
(on a centralized device)
Use the command...
system-view
stp tc-protection enable
stp tc-protection threshold
number
Use the command...
display stp abnormal-port [ | { begin |
exclude | include } regular-expression ]
display stp bpdu-statistics [ interface
interface-type interface-number [ instance
instance-id ] ] [ | { begin | exclude |
include } regular-expression ]
display stp down-port [ | { begin |
exclude | include } regular-expression ]
display stp [ instance instance-id ] history
[ | { begin | exclude | include }
regular-expression ]
display stp [ instance instance-id ] history
[ slot slot-number ] [ | { begin | exclude |
include } regular-expression ]
display stp [ instance instance-id ] tc [ |
{ begin | exclude | include }
regular-expression ]
display stp [ instance instance-id ] tc [ slot
slot-number ] [ | { begin | exclude |
include } regular-expression ]
display stp [ instance instance-id ]
[ interface interface-list ] [ brief ] [ |
{ begin | exclude | include }
regular-expression ]
75
Remarks
—
Optional
Enabled by default
Optional
6 by default
Remarks
Available in any
view
Available in any
view
Available in any
view
Available in any
view
Available in any
view
Available in any
view
Available in any
view
Available in any
view