Alcatel-Lucent 060321-10, Rev. B, Cli Reference Manual

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Distributed Spanning Tree Commands show spantree
OmniSwitch CLI Reference Guide March 2011 page 5-73
show spantree
Displays Spanning Tree bridge information for the flat mode Common and Internal Spanning Tree (CIST)
instance or the per-VLAN mode VLAN instances.
show spantree
Syntax Definitions
NA
Defaults
NA
Platforms Supported
OmniSwitch 10K
Usage Guidelines
•
If the switch is operating in the per-VLAN mode, this command displays a list of VLAN instances.
•
If the switch is operating in the flat mode and the protocol is STP or RSTP, this command displays the
single flat mode instance.
•
If the switch is operating in the flat mode and the protocol is set to MSTP, this command displays a list
of MSTIs, including MSTI 0 (also known as the CIST).
Examples
-> spantree mode flat
-> spantree protocol rstp
-> show spantree
Spanning Tree Path Cost Mode : 32 BIT
Bridge STP Status Protocol Priority(Prio:SysID)
------+----------+--------+--------------------
1 ON RSTP 32768 (0x8000:0x0000)
output definitions
Spanning Tree Path Cost
Mode The Spanning Tree path cost mode for the switch ( 32 BIT or AUTO )
Configured through the spantree path-cost-mode command.
Bridge The CIST instance, referred to as bridge 1 when either STP (802.1D) or
RSTP (802.1W) is the active protocol.
STP Status The Spanning Tree state for the CIST instance ( ON or OFF ).
Protocol The Spanning Tree protocol applied to the instance ( STP or RSTP ).
Configured through the spantree protocol command.
Priority The Spanning Tree bridge priority for the instance. The lower the num-
ber, the higher the priority. Configured through the
spantree priority
command.