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Parameters
instance instance-id: Displays the statistics of TC/TCN BPDUs received and sent by all ports in the
specified MSTI. The minimum value of instance-id is 0, representing the common internal spanning
tree (CIST), and the maximum value of instance-id is 31.
slot slot-number: Displays the statistics of TC/TCN BPDUs received and sent by all ports in the
specified MSTI on the specified card. slot-number represents the number of the slot that houses the
card. If this keyword-argument combination is not specified, this command displays the statistics of
TC/TCN BPDUs received and sent by all ports in the specified MSTI on all cards (on a distributed
device).
chassis chassis-number slot slot-number: Displays the statistics of TC/TCN BPDUs received and
sent by all ports in the specified MSTI 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 keyword-argument combination is not
specified, this command displays the statistics of TC/TCN BPDUs received and sent by all ports in the
specified MSTI on all cards of all member devices in the current IRF virtual device (on a distributed IRF
member device).
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see CLI Configuration in the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays the lines that do not match the specified regular expression.
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 tc command to display the statistics of TC/TCN BPDUs received and sent by all
ports in an MSTI or all MSTIs.
If you do not specify an MSTI ID, this command will display the statistics of TC/TCN BPDUs received
and sent by all ports in all MSTIs. The displayed information is sorted by instance ID and by port name
in each MSTI.
If you specify an MSTI ID, this command will display the statistics of TC/TCN BPDUs received and
sent by all ports in the specified MSTI, in port name order.
Examples
# Display the statistics of TC/TCN BPDUs received and sent by all ports on the card on slot 2 in MSTI
0.
<Sysname> display stp instance 0 tc slot 2
-------------- STP slot 2 TC or TCN count -------------
MSTID Port Receive Send
0 GigabitEthernet2/0/1 6 4
0 GigabitEthernet2/0/2 0 2
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