Dell PowerConnect 3024 User Manual page 17

Address Aging
In the Address Aging page, you can specify how long an address stays available to the switch if it is not configured as static.
The following option is available:
Aging Time — sets the time before an address is purged from system. You can change this value to any number between 10 and 1,000,000 seconds.
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To save any changes you make in this page, click Apply. To reset these fields to their current value, click Reload.
Spanning Tree
The Spanning Tree page contains links to the following pages that allow you to specify the parameters of the spanning tree protocol:
Bridge Settings
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Port Settings
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Bridge Settings
From the Bridge Settings page, you can enable and configure the Spanning Tree. The following options are available:
Enable — turns the Spanning Tree on. If you enable the Spanning Tree, you must complete the following fields:
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Hello Time — sets the interval between configuration messages sent by the spanning tree protocol.
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Max Age — sets the amount of time before the system discards a configuration message.
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Forward Delay — sets the amount of time the system spends in learning and listening states.
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Bridge Priority — sets the priority setting among other switches in the spanning tree.
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Disable — disables the spanning tree protocol on the system.
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To save any changes you make in this page for the current session, click Apply. To reset these fields to their current value, click Reload.