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Cisco Catalyst Switch Manager User Guide
OL-4930-01
Chapter 9 Software Management
STP Configuration Window
The following tabs are available on the STP Configuration window:
•
Details Tab
•
MST Tab
•
Additional Notes Tab
Details Tab
The following areas are available on the Details tab of the STP Configuration window:
•
Details
•
MAC Address Reduction
Details
The Details area provides the following information:
•
Spanning Tree Type—Indicates the STP type. This attribute may have the following values:
–
pvst
–
rapid–pvst
–
mst
Note
Although the Spanning Tree Type value of ‘rapid–pvst’ is not valid for Cisco 2900, 3500, 4000,
and 4500 series devices, no error messages are produced when this attribute is configured as such
and saved.
•
BackboneFast Enabled—Indicates whether or not the BackboneFast capability is enabled on the
device. Applies to all STP instances running on the device.
•
UplinkFast Enabled—Indicates whether or not the UplinkFast capability is enabled on the device.
Applies to all STP instances running on the device.
•
PortFast BPDU Guard Enabled—Indicates whether or not the PortFast BPDU guard is enabled on
the device. Applies to all STP instances running on the device.
•
STP Cost Mode—Indicates the type of spanning tree path cost mode configured on the device.
Applies to all STP instances running on the device. When the value is changed, the path cost of all
ports will be reassigned to the default path cost values based on the new spanning tree path cost
mode and ports’ speed. This attribute may have the following values:
–
short
–
long
•
Station-Learning Generating Rate—The maximum number of station-learning frames that the
device will generate in each 100-millisecond period after an UplinkFast transition. Applies to all
STP instances running on the device.
•
EtherChannel Misconfig. Guard Enabled—when enabled the device will report an error if it detects
a routing loop due to the misconfiguration of an EtherChannel. This attribute is disabled in a pure
CatOS environment.