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Cisco ME 3400 Ethernet Access Switch Command Reference

OL-9640-07

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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Cisco ME 3400 Especificaciones Pagina 543

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Cisco ME 3400 Especificaciones Pagina 543

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