Figure 6-72. Configure Spanning Tree - Global
The Spanning Tree Protocol (STP) operates on two levels: on the switch level, the settings are globally implemented. On the port level, the settings are implemented on a per
The factory default setting should cover the majority of installations. It is advisable to keep the default settings as set at the factory; unless, it is absolutely necessary to change them.
The following fields can be set:
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| Parameter | Description |
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Status:<Enabled> | This field can be toggled between Enabled and Disabled using the | ||||
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| space bar. This will enable or disable the Spanning Tree Protocol | ||
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| (STP), globally, for the switch. |
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STP |
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| This field can be toggled using the space bar to select any of the STP | ||
Group:<Default> | groups that have been configured on the switch. | ||||
Max. Age: [ | ] |
| The Max. Age can be set from 6 to 40 seconds. At the end of the Max. | ||
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| Age, if a BPDU has still not been received from the Root Bridge, your | ||
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| Switch will start sending its own BPDU to all other Switches for | ||
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| permission to become the Root Bridge. If it turns out that your Switch | ||
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| has the lowest Bridge Identifier, it will become the Root Bridge. | ||
Hello Time:[ | ] | The Hello Time can be set from 1 to 10 seconds. This is the interval | |||
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| between two transmissions of BPDU packets sent by the Root Bridge | ||
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| to tell all other Switches that it is indeed the Root Bridge. | ||
Forward Delay:[ ] | The Forward Delay can be from 4 to 30 seconds. This is the time any | ||||
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| port on the Switch spends in the listening state while moving from the | ||
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| blocking state to the forwarding state. | ||
Priority:[ ] |
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| A Priority for the switch can be set from 0 to 65535. This number is | ||
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| used in the voting process between switches on the network to | ||
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| determine which switch will | be the root switch. A low number | |
indicates a high priority, and a high probability that this switch will be elected as the root switch.
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