Spanning-Tree Link-Type - Cisco IE-3000-8TC Command Reference Manual

spanning-tree link-type

spanning-tree link-type
Use the spanning-tree link-type interface configuration command to override the default link-type
setting, which is determined by the duplex mode of the interface, and to enable rapid spanning-tree
transitions to the forwarding state. Use the no form of this command to return to the default setting.
Syntax Description
point-to-point
shared
Defaults The switch derives the link type of an interface from the duplex mode. A full-duplex interface is
considered a point-to-point link, and a half-duplex interface is considered a shared link.
Command Modes Interface configuration
Command History Release
12.2(44)EX
Usage Guidelines You can override the default setting of the link type by using the spanning-tree link-type command. For
example, a half-duplex link can be physically connected point-to-point to a single interface on a remote
switch running the Multiple Spanning Tree Protocol (MSTP) or the rapid per-VLAN spanning-tree plus
(rapid-PVST+) protocol and be enabled for rapid transitions.
Examples
This example shows how to specify the link type as shared (regardless of the duplex setting) and to
prevent rapid transitions to the forwarding state:
Switch(config-if)# spanning-tree link-type shared
You can verify your setting by entering the show spanning-tree mst interface interface-id or the show
spanning-tree interface interface-id privileged EXEC command.
Cisco IE 3000 Switch Command Reference
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spanning-tree link-type {point-to-point | shared}
no spanning-tree link-type
Specify that the link type of an interface is point-to-point.
Specify that the link type of an interface is shared.
Modification
This command was introduced.
Chapter 2 IE 3000 Switch Cisco IOS Commands
OL-13019-01