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Spanning Tree Global Settings Page
The Spanning Tree Global Parameters page contains the following fields:
Spanning Tree State—Enables STP on the device. The possible field values are:
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Enable—Enables STP on the device.
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Disable—Disables STP on the device.
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STP Operation Mode—Indicates the STP mode by which STP is enabled on the device. The possible field values are:
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Classic STP—Enables Classic STP on the device (IEEE 802.1D).
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Rapid STP—Enables Rapid STP is enabled on the device (IEEE 802.1w). For more information on Rapid STP, see
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Priority (0-65535)—Specifies the bridge priority value. When switches or bridges are running STP, each is assigned a priority. After exchanging
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BPDUs, the switch with the lowest priority value becomes the Root Bridge. The default value is 32768. The port priority value is incremented in multiples
of 16; for example, 16, 32, 64, 80, and so on.
Hello Time (1-10)—Specifies the switch Hello Time. The Hello Time indicates the amount of time in seconds a root bridge waits between configuration
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messages. The default is 2 seconds.
Max Age (6-40)—Specifies the switch Maximum Age Time. The Maximum Age Time indicates the amount of time in seconds a bridge waits before
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sending configuration messages. The default maximum age time is 20 seconds.
Forward Delay (4-30)—Specifies the switch forward delay time. The Forward Delay Time indicates the amount of time in seconds a bridge remains in a
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listening and learning state before forwarding packets. The default is 15 seconds.
Bridge ID—Identifies the Bridge priority and MAC address.
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Root Bridge ID—Identifies the Root Bridge priority and MAC address.
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Root Port—Indicates the port number that offers the lowest cost path from this bridge to the Root Bridge. It is significant when the Bridge is not the
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Root. The default is zero.
Root Path Cost—The cost of the path from this bridge to the root.
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Topology Changes Counts—Specifies the total amount of STP state changes that have occurred.
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Last Topology Change—Indicates the amount of time that has elapsed since the bridge was initialized or reset, and the last topographic change
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occurred. The time is displayed in a day hour minute second format, for example, 2 days 5 hours 10 minutes and 4 seconds.
Defining STP Global Parameters:
"Configuring Rapid Spanning
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