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Cisco ME 3400 Ethernet Access Switch Command Reference
OL-9640-10
Chapter 2 Cisco ME 3400 Ethernet Access Switch Cisco IOS Commands
show spanning-tree
Related Commands Command Description
clear spanning-tree counters Clears the spanning-tree counters.
clear spanning-tree detected-protocols Restarts the protocol migration process.
spanning-tree bpdufilter Prevents an interface from sending or receiving bridge
protocol data units (BPDUs).
spanning-tree bpduguard Puts an interface in the error-disabled state when it
receives a BPDU.
spanning-tree cost Sets the path cost for spanning-tree calculations.
spanning-tree extend system-id Enables the extended system ID feature.
spanning-tree guard Enables the root guard or the loop guard feature for all the
VLANs associated with the selected interface.
spanning-tree link-type Overrides the default link-type setting for rapid
spanning-tree transitions to the forwarding state.
spanning-tree loopguard default Prevents alternate or root ports from becoming the
designated port because of a failure that leads to a
unidirectional link.
spanning-tree mst configuration Enters multiple spanning-tree (MST) configuration mode
through which the MST region configuration occurs.
spanning-tree mst cost Sets the path cost for MST calculations.
spanning-tree mst forward-time Sets the forward-delay time for all MST instances.
spanning-tree mst hello-time Sets the interval between hello BPDUs sent by root switch
configuration messages.
spanning-tree mst max-age Sets the interval between messages that the spanning tree
receives from the root switch.
spanning-tree mst max-hops Sets the number of hops in an MST region before the
BPDU is discarded and the information held for an
interface is aged.
spanning-tree mst port-priority Configures an interface priority.
spanning-tree mst priority Configures the switch priority for the specified
spanning-tree instance.
spanning-tree mst root Configures the MST root switch priority and timers based
on the network diameter.
spanning-tree port-priority Configures an interface priority.
spanning-tree portfast (global
configuration)
Globally enables the BPDU filtering or the BPDU guard
feature on Port Fast-enabled interfaces or enables the Port
Fast feature on all nontrunking interfaces.
spanning-tree portfast (interface
configuration)
Enables the Port Fast feature on an interface and all its
associated VLANs.
spanning-tree vlan Configures spanning tree on a per-VLAN basis.
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