107 
Field Description 
IntPathCost 
Internal path cost. The switch automatically calculates the default path cost of a 
port, or alternatively, you can use the stp cost command to configure the path cost 
of a port. 
Root Port  Root port name (displayed only if a port of the switch is the root port of MSTIs). 
 
display stp tc 
Syntax 
display stp [  instance  instance-id ] tc  [  slot  slot-number  ] [ | { begin | exclude | include } 
regular-expression ] 
View 
Any view 
Default level 
0: Visit level 
Parameters 
instance instance-id: Displays the statistics of TC/TCN BPDUs received and sent by all ports in a 
particular MSTI. The instance-id argument ranges from 0 to 16, where 0 represents the CIST. 
slot slot-number: Displays the statistics of TC/TCN BPDUs received and sent by all ports on the specified 
IRF member device. slot-number represents the member number of the device in the IRF. If this 
keyword-argument combination is not specified, this command displays the statistics of TC/TCN BPDUs 
received and sent by all ports on all IRF member devices. If the switch does not support IRF, the 
slot-number argument must be 1. 
|: Filters command output by specifying a regular expression. For more information about regular 
expressions, see the Fundamentals Configuration Guide. 
begin: Displays the first line that matches the specified regular expression and all lines that follow. 
exclude: Displays all 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 IRF member device 1 in 
MSTI 0.  
<Sysname> display stp instance 0 tc slot 1