Alcatel-Lucent 6850-48 Guida Di Riferimento

Distributed Spanning Tree Commands

page 15-118

OmniSwitch CLI Reference Guide

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

show spantree [instance]

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

OmniSwitch 6400, 6850, 6855, 9000, 9000E

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

priority values for all 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 bridge 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 

 or 

commands instead.

-> bridge mode flat

-> bridge protocol rstp

-> show spantree

  Spanning Tree Path Cost Mode : AUTO

Bridge STP Status Protocol Priority(Prio:SysID)

------+----------+--------+--------------------

    1      ON      RSTP   32768 (0x8000:0x0000

all instances