R211x-HP Flexfabric 11900 Layer 2 - LAN Switching Command Reference

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Examples
# Display information about ports that were shut down by spanning tree protection functions.
<Sysname> display stp down-port
Down Port Reason
Ten-GigabitEthernet1/0/1 BPDU-Protected
Table 32 Command output
Field Descri
p
tion
Down Port Name of a port that was shut down by the spanning tree protection functions.
Reason
Reason that the port was shut down. BPDU-Protected indicates the BPDU guard
function.
display stp history
Use display stp history to display historical port role calculation information.
Syntax
In standalone mode:
display stp [ instance instance-list ] history [ slot slot-number ]
In IRF mode:
display stp [ instance instance-list ] history [ chassis chassis-number slot slot-number ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
instance instance-list: Displays the historical port role calculation information for the MSTIs that are
specified by an instance list, in the format of instance-list = { instance-id [ to instance-id ] }&<1-10>, where
&<1-10> indicates that you can specify up to 10 instances or instance ranges. The value range for the
instance-id argument is 0 to 4094, and the value 0 represents the CIST.
slot slot-number: Displays the historical port role calculation information on the specified card.
slot-number represents the number of the slot that houses the card. If this option is not specified, this
command displays the historical port role calculation information on all cards. (In standalone mode.)
chassis chassis-number slot slot-number: Displays the historical port role calculation information on the
specified card of the specified IRF member device. The chassis-number argument represents the ID of the
IRF member device. The slot-number argument represents the number of the slot that houses the card. If
this option is not specified, this command displays the historical port role calculation information on all
cards of all member devices in the IRF fabric. (In IRF mode.)