Alcatel-Lucent 060321-10, Rev. B, Справочное руководство CLI

Страница: 219 / 2354

Distributed Spanning Tree Commands show spantree cist
OmniSwitch CLI Reference Guide March 2011 page 5-77
System Hello Time = 10
BPDU Switching Enabled
-> spantree mode per-vlan
-> show spantree cist
Per Vlan Spanning Tree is enforced !! (Per VLAN mode)
INACTIVE Spanning Tree Parameters for Flat Mode
Spanning Tree Status : ON,
Protocol : IEEE Rapid STP,
Priority : 32768 (0x8000),
TxHoldCount : 5,
System Max Age (seconds) = 10,
System Forward Delay (seconds) = 10,
System Hello Time (seconds) = 5
output definitions
Spanning Tree Status The Spanning Tree state for the instance ( ON or OFF ).
Protocol The Spanning Tree protocol applied to the CIST ( STP, RSTP, or
MSTP ). Configured through the spantree protocol command.
Mode The Spanning Tree operating mode for the switch ( per-vlan or flat ).
Configured through the spantree mode command.
Auto-Vlan-Containment The auto VLAN containment status for the instance ( Enabled or
Disabled ). AVC prevents a port that has no VLANs mapped to a
Multiple Spanning Tree Instance (MSTI) from becoming the root port
for that instance. Configured through the
spantree auto-vlan-contain-
ment 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.
Bridge ID The bridge identifier for this Spanning Tree instance. Consists of the
bridge priority value (in hex) concatenated with the dedicated bridge
MAC address.
CST Designated Root The bridge identifier for the root of the flat mode CIST instance. This
field only appears when MSTP is active on the switch.
Cost to CST Root The cost of the path to the root of the flat mode CIST instance. This
field only appears when MSTP is active on the switch.
Next CST Best Cost The cost of the next best root port for the flat mode CIST instance. This
field only appears when MSTP is active on the switch.
Designated Root The bridge identifier for the root of the Spanning Tree for this instance.
Cost to Root Bridge The cost of the path to the root for this Spanning Tree instance.
Root Port The port that offers the lowest cost path from this bridge to the root
bridge for this Spanning Tree instance.
Next Best Root Cost The cost of the next best root port for this Spanning Tree instance.
Next Best Root Port The port that offers the next best (second lowest) cost path to the root
bridge for this Spanning Tree instance.
Tx Hold Count The count to limit the transmission of BPDU through the port.