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Fit AP V200R010C00 Command Reference

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
display stp active

display stp active

Function

The display stp active command displays the status of and statistics on spanning trees of all Up interfaces.

Format

display stp active

Parameters

None

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

The display stp active command displays information about spanning trees of Up interfaces only.

Example

# Display information about spanning trees of all Up interfaces.

<Huawei> display stp active
-------[CIST Global Info][Mode STP]-------                                      
CIST Bridge         :40960.dcd2-fc9d-0bb0                                       
Config Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 20                    
Active Times        :Hello 2s MaxAge 20s FwDly 15s MaxHop 20                    
CIST Root/ERPC      :40960.dcd2-fc9d-0bb0 / 0 (This bridge is the root)         
CIST RegRoot/IRPC   :40960.dcd2-fc9d-0bb0 / 0                                   
CIST RootPortId     :0.0                                                        
BPDU-Protection     :Disabled                                                   
TC or TCN received  :0                                                          
TC count per hello  :0                                                          
STP Converge Mode   :Normal                                                     
Time since last TC  :0 days 0h:0m:0s                                            
Number of TC        :0 
Table 6-14  Description of the display stp active command output

Item

Description

CIST Bridge

  • The 16 leftmost bits are the switch's priority in the CIST.
  • The 48 rightmost bits are the switch's MAC address.

Config Times

Configured bridge protocol parameters:
  • Hello: interval at which Bridge Protocol Data Units (BPDUs) are sent

  • MaxAge: maximum TTL of a BPDU

  • FwDly: delay in interface status transition

  • MaxHop: maximum number of hops in the MST region

Active Times

Bridge protocol parameters that are being used:
  • Hello: interval at which BPDUs are sent

  • MaxAge: maximum TTL of a BPDU

  • FwDly: delay in interface status transition

  • MaxHop: maximum number of hops in the MST region

CIST Root/ERPC

CIST root bridge ID/external path cost from the switch to the root bridge.

CIST RegRoot/IRPC

ID of the CIST region root bridge/Cost of the internal path (path from the switch to the CIST region root switch)

CIST RootPortId

CIST root port ID. "0.0" indicates that the switch is the root switch without the root port.

BPDU-Protection

Whether BPDU protection is enabled:
  • Disabled: BPDU protection is disabled.

  • Enabled: BPDU protection is enabled.

TC or TCN received

Number of received topology change (TC) or topology change notification (TCN) packets

TC count per hello

Number of TC packets received per Hello time

STP Converge Mode

Convergence mode of the Spanning Tree Protocol (SPT), which can be fast or normal.

Time since last TC

Time since the last topology change

Number of TC

Number of topology changes

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Updated: 2019-07-18

Document ID: EDOC1100064353

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