Spanning-Tree Commands
461
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CLI\files\Spanning-Tree.fm
D E L L CO N F I D E N T I A L – P R E L I MI N A RY 5/ 1 5 /1 2 - F O R PR O O F O N LY
Syntax
spanning-tree portfast
[
auto
]
no spanning-tree portfast
Parameters
auto
—Specifies that the software waits for 3 seconds (with no BPDUs
received on the interface) before putting the interface into the PortFast
mode.
Default Configuration
PortFast mode is disabled.
Command Mode
Interface Configuration (Ethernet, port-channel) mode
Example
The following example enables the PortFast mode on gigabitethernet port
1/0/15.
Console(config)#
interface
gigabitethernet 1/0/1
5
Console(config-if)#
spanning-tree portfast
spanning-tree link-type
Use the
spanning-tree link-type
Interface Configuration (Ethernet, port-
channel) mode command to override the default link-type setting
determined by the port duplex mode, and enable Rapid Spanning Tree
Protocol (RSTP) transitions to the forwarding state. Use the
no
form of this
command to restore the default configuration.
Syntax
spanning-tree link-type
{point-to-point | shared}
no spanning-tree spanning-tree link-type
Parameters
•
point-to-point
—Specifies that the port link type is point-to-point.