Specifications

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0XO(15.1(1)XO)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
spanning-tree link-type
spanning-tree l ink-type
To configure a link type for a port, u se the spanning-tree link-type command. To return to the default
settings, use the no form of this command.
spanning-tree link-type {point-to -poi nt | shared}
no spanning-tree link-type
Syntax Description
Defaults L ink type is de rived fr om the duplex m ode.
Command Modes Interface configuration mode
Usage Guidelines RS TP+ fast transition works only on point-to-point links between two bridges.
By default, the switch derives the link type of a port from the duplex mode. A full-duplex port is
considered as a point-to-point link while a half-duplex configuration is assumed to be on a shared link.
If you designate a port as a shared link, RSTP+ fast transition is forbidden, regardless of the duplex setting.
Examples This exampl e shows how to configure the port as a shared link:
Switch(config-if)# spanning-tree link-type shared
Switch(config-if)#
Related Commands
point-to-point Specifies that the interface is a point-to-point link.
shared Specifies that the interface is a shared medium.
Command Description
show spanning-tree Displays spanning-tree information.