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Cisco Catalyst Switch Manager User Guide
OL-4930-01
Chapter 10 Virtual Interface Management
VLAN Management Window
STP Tab
The following areas are available on the STP tab of the VLAN Management window:
•
STP
•
Root
•
Root Election
•
Advanced
STP
The STP area provides the following information:
•
Spanning Tree Protocol—Indicates whether the STP is enabled or disabled for the selected VLAN.
This attribute has one of the following values:
–
enabled
–
disabled
–
notApplicable
•
Primary Root—Configures whether or not the switch is the root node in the STP instance. If there
is no spanning tree instance for the VLAN, the value is nil.
•
Enable—Enables STP on the selected VLAN.
•
Disable—Disables STP on the selected VLAN.
Root
The Root area provides the following information:
•
Current Root Priority—Bridge priority of the current root switch in the spanning tree instance. If
there is no spanning tree instance for the VLAN, the value is nil. This attribute is read-only.
•
Root Interface—If this switch is not the root of the spanning tree, indicates the local port used to
reach the root node. This is a local port that is a member of the VLAN. This value should match the
Name field in the Interface window corresponding to the root port (for example, “FastEthernet 2/5”).
If the switch is currently the root or there is no spanning tree instance for the VLAN, the value is
nil. This attribute is read-only.
•
Current Root MAC—Bridge identifier address. This is the MAC address of the VLAN on the root
bridge in the STP instance. If there is no spanning tree instance for the VLAN, the value is nil. This
attribute is read-only.
•
Root Path Cost—If this is not the root of the spanning tree, indicates the path cost to the root (this
is the path cost of the root port). If the switch is currently the root or there is no spanning tree
instance for the VLAN, the value is nil. This attribute is read-only.
Содержание WS-C3550-12G
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