User’s Manual of
Priority | A relative priority for each switch – lower | 32768 |
| numbers give a higher priority and a greater |
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| chance of a given switch being elected as |
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| the root bridge |
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Hello Time | The length of time between broadcasts of | 2 seconds |
| the hello message by the switch |
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Maximum Age Timer | Measures the age of a received BPDU for a | 20 seconds |
| port and ensures that the BPDU is discarded |
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| when its age exceeds the value of the |
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| maximum age timer. |
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Forward Delay Timer | The amount time spent by a port in the | 15 seconds |
| learning and listening states waiting for a |
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| BPDU that may return the port to the |
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| blocking state. |
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The following are the
Variable | Description | Default Value |
Port Priority | A relative priority for each | 128 |
| port |
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| and a greater chance of a given port being |
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| elected as the root port |
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Port Cost | A value used by STP to evaluate paths – | |
| STP calculates path costs and selects the | |
| path with the minimum cost as the active | ports |
| path | 0 - Auto |
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Default Spanning-Tree Configuration
Feature | Default Value |
Enable state | STP disabled for all ports |
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Port priority | 128 |
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Port cost | 0 |
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Bridge Priority | 32,768 |
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User-Changeable STA Parameters
The Switch’s factory default setting should cover the majority of installations. However, it is advisable to keep the default settings as set at the factory; unless, it is absolutely necessary. The user changeable parameters in the Switch are as follows:
Priority – A Priority for the switch can be set from 0 to 65535. 0 is equal to the highest Priority.
Hello Time – The Hello Time can be from 1 to 10 seconds. This is the interval between two transmissions of BPDU packets sent by the Root Bridge to tell all other Switches that it is indeed the Root Bridge. If you set a Hello Time for your Switch, and it is not
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