Alcatel-Lucent 6850-48 参照ガイド

Distributed Spanning Tree Commands

OmniSwitch CLI Reference Guide

page 15-137

Displays Spanning Tree port information for the flat mode Common and Internal Spanning Tree (CIST) 
instance or a 1x1 mode VLAN instance.

show spantree [instance] ports [forwarding | blocking | active | configured]

The CIST instance or an existing VLAN ID number (1–4094).

Displays Spanning Tree operational port parameters for ports that are 
forwarding for the specified instance.

Displays Spanning Tree operational port parameters for ports that are 
blocked for the specified instance.

Displays a list of active ports associated with the specified instance.

Displays Spanning Tree administrative port parameters for all ports 
associated with the specified instance. Note that this parameter is only 
available if an instance value is specified with this command.

OmniSwitch 6400, 6850, 6855, 9000, 9000E

• If an instance number is not specified, this command displays the Spanning Tree operational status, 

path cost, and role for all ports and their associated instances. 

• Specifying an instance number with this command when the switch is running the 1x1 Spanning Tree 

operating mode implies a VLAN ID and displays Spanning Tree port information for the associated 
VLAN instance.

• If the switch is running in the flat mode and STP (802.1D) or RSTP (802.1W) is the active protocol, 

enter 1 to specify the CIST instance. If MSTP is the active protocol, however, entering 1 for the 
instance number is not accepted. In this case, use the 

 commands instead.

• The configured keyword is only available when an instance number is specified with this command. In 

addition, this keyword cannot be used in combination with either the forwarding or blocking 
keywords.

all instances

all ports