display stp root

Syntax

display stp root [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

|: 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.

Description

Use display stp root to display the root bridge information of all MSTIs.

Examples

# In MSTP mode, display the root bridge information of all spanning trees.

<Sysname> display stp root
 MSTID  Root Bridge ID        ExtPathCost IntPathCost Root Port
   0    0.00e0-fc0e-6554      200200      0           Ethernet1/0/1

# In PVST mode, display the root bridge information of all spanning trees.

<Sysname> system-view
[Sysname] stp mode pvst
[Sysname] display stp root
 VLAN  Root Bridge ID        ExtPathCost IntPathCost Root Port
    1  0.00e0-fc0e-6554      200200      0           Ethernet1/0/1

Table 29: Command output

Field	Description
ExtPathCost	External path cost. The device automatically calculates the default path cost of a port. Or, 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. Or, 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).

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