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Cisco MWR 2941 - Spanning-Tree Link-Type

Cisco MWR 2941
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Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
spanning-tree link-type
627
Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
OL-23890-01
spanning-tree link-type
To configure a link type for a port, use the spanning-tree link-type command in the interface
configuration mode. To return to the default settings, use the no form of this command.
spanning-tree link-type {point-to-point | shared}
no spanning-tree link-type
Syntax Description
Command Default Link type is automatically derived from the duplex setting unless you explicitly configure the link type.
Command Modes Interface configuration (config-if)
Command History
Usage Guidelines Rapid Spanning Tree Protocol Plus (RSTP+) 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 example shows how to configure the port as a shared link:
Router(config-if)# spanning-tree link-type shared
Router(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.
Release Modification
12.2(14)SX Support for this command was introduced on the Supervisor Engine 720.
12.2(17d)SXB Support for this command on the Supervisor Engine 2 was extended to
Release 12.2(17d)SXB.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
15.0(1)MR This command was integrated into 15.0(1)MR.
Command Description
show spanning-tree interface Displays information about the spanning-tree state.

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