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| Max Age | The Max Age may be set to ensure that old information does not endlessly circulate |
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| through redundant paths in the network, preventing the effective propagation of the |
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| new information. Set by the Root Bridge, this value will aid in determining that the |
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| Switch has spanning tree configuration values consistent with other devices on the |
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| bridged LAN. If the value ages out and a BPDU has still not been received from the |
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| Root Bridge, the 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 has the lowest |
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| Bridge Identifier, it will become the Root Bridge. The user may choose a time |
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| between 6 and 40 seconds. The default value is 20. |
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| Forward Delay | The Forward Delay can be from 4 to 30 seconds. Any port on the Switch spends this |
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| time in the listening state while moving from the blocking state to the forwarding |
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| state. |
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| Last Topology Change | This field shows the time, in seconds, since the last spanning tree topology change. |
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| Topology Changes | This field displays the number of times that the spanning tree topology has changed |
| Count | since the original initial boot up of the Switch. |
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45