show spanning-tree statistics

Syntax

show spanning-tree statistics<brief | detail ><interface interface-name><routing-instance routing-instance-name>

Syntax (EX Series Switch)

show spanning-tree statistics<brief | detail ><interface interface-name>

Release Information

Command introduced in JUNOS Release 8.4.

Command introduced in JUNOS Release 9.0 for EX Series switches.

Description

Display STP statistics.

Options

none: Display brief STP statistics.
brief | detail: (Optional) Display the specified level of output.
interface interface-name: (Optional) Display STP statistics for the specified interface.
routing-instance routing-instance-name: (Optional) Display STP statistics for the specified routing instance.

Required Privilege Level

view

List of Sample Output

show spanning-tree statistics routing-instance
show spanning-tree statistics interface

Output Fields

Table 194 lists the output fields for the show spanning-tree statistics command. Output fields are listed in the approximate order in which they appear.

Table 194: show spanning-tree statistics Output Fields

Field Name	Field Description
Message type	Type of message being counted.
BPDUs sent	Total number of BPDUs sent.
BPDUs received	Total number of BPDUs received.
BPDUs sent in last 5 secs	Number of BPDUs sent in the most recent 5-second period.
BPDUs received in last 5 secs	Number of BPDUs received in the most recent 5-second period.
Interface	Interface for which the statistics are being displayed.
Next BPDU transmission	Number of seconds until the next BPDU is scheduled to be sent.

Sample Output

show spanning-tree statistics routing-instance

user@host> show spanning-tree statistics routing-instance
vs1 detail

Routing instance level STP statistics
Message type                   : bpdus
BPDUs sent                     : 121
BPDUs received                 : 537
BPDUs sent in last 5 secs      : 5
BPDUs received in last 5 secs  : 27

show spanning-tree statistics interface

user@host> show spanning-tree statistics interface
ge-11/1/4 routing-instance vs1 detail

Interface   BPDUs sent   BPDUs received      Next BPDU
                                            transmission
ge-11/1/4            7           190                0