Distributed Spanning Tree Commands
page 16-130 OmniSwitch 6250 CLI Reference Guide November 2009
Release History
Release 6.6.1; command was introduced.
Related Commands
Next Best Root Port The port that offers the next best (second lowest) cost path to the root
bridge for this Spanning Tree instance.
TxHoldCount The count to limit the transmission of BPDU through the port.
Topology Changes The number of topology changes detected by this Spanning Tree
instance since the management entity was last reset or initialized.
Topology age The amount of time (in hundredths of seconds) since the last topology
change was detected by this Spanning Tree instance (hh:mm:ss or dd
days and hh:mm:ss).
Max Age The amount of time (in seconds) that Spanning Tree Protocol informa-
tion is retained before it is discarded. MSTIs inherit this value from the
CIST instance.
Forward Delay The amount of time (in seconds) that a port will remain in the Listening
state and then the Learning state until it reaches the forwarding state.
This is also the amount of time used to age out all dynamic entries in
the Forwarding Database when a topology change occurs. MSTIs
inherit this value from the CIST instance.
Hello Time The amount of time (in seconds) between the transmission of Configu-
ration BPDUs on any port that is the Spanning Tree root or is attempt-
ing to become the Spanning Tree root. MSTIs inherit this value from
the CIST instance.
System Max Age The Max Age value for the root bridge.
System Forward Delay The Forward Delay value for the root bridge.
System Forward Delay The Forward Delay value for the root bridge.
show spantree Implicit command for displaying the Spanning Tree bridge configu-
ration for the flat mode CIST instance or a 1x1 mode VLAN
instance.
show spantree cist Explicit command for displaying the Spanning Tree bridge configu-
ration for the CIST instance regardless of which mode (1x1 or flat)
is active on the switch.
show spantree 1x1 Explicit command for displaying the Spanning Tree bridge configu-
ration for a VLAN instance regardless of which mode (1x1 or flat)
is active on the switch.
output definitions (continued)
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