R2511-HP MSR Router Series Layer 2 - LAN Switching Command Reference(V5)

Table 19 Command output

Field Description

ExtPathCost

External path cost. The device automatically calculates the default path cost of a port.

Otherwise, you can use the stp cost command to configure the path cost of a port.

IntPathCost

Internal path cost. The device automatically calculates the default path cost of a port.

Otherwise, 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 device is the root port of MSTIs).

display stp tc

Use display stp tc to display the statistics of TC/TCN BPDUs received and sent by all ports in an MSTI or

all MSTIs.

Syntax

display stp [ instance instance-id ] tc [ | { begin | exclude | include } regular-expression ]

Views

Any view

Default command 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 minimum value of instance-id is 0, representing the CIST, and the maximum value

of instance-id is 15.

|: Filters command output by specifying a regular expression. For more information about regular

expressions, see 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, a case-sensitive string of 1 to 256 characters.

Usage guidelines

In STP or RSTP mode, the displayed information is sorted by port name.

In MSTP mode, follow these guidelines:

• If you do not specify any MSTI, this command displays 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, this command displays the statistics of TC/TCN BPDUs received and sent by

all ports in the specified MSTI, in port name order.

Examples

# In MSTP mode, display the statistics of TC/TCN BPDUs received and sent by all ports in MSTI 0.

<Sysname> display stp instance 0 tc

MSTID Port Receive Send