D-Link DES-3250TG Standalone Layer 2 Switch
The following fields can be set:
Parameter | Description |
Spanning Tree | This field can be toggled between Enabled |
Protocol <Disabled> | and Disabled using the |
| will enable or disable the Spanning Tree |
| Protocol (STP), globally, for the switch. |
Bridge Max Age | The Bridge Maximum Age can be set from 6 |
Sec) <20 > | to 40 seconds. At the end of the Max. Age, if |
| a BPDU has still not been received from the |
| Root Bridge, your switch will start sending |
| its own BPDU to all other switches for |
| permission to become the Root Bridge. If it |
| turns out that your switch has the lowest |
| Bridge Identifier, it will become the Root |
| Bridge. |
Bridge Hello Time (1- | The Bridge Hello Time can be set from 1 to |
10 Sec) < 2 > | 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. |
Bridge Forward Delay | The Bridge Forward Delay can be from 4 to |
| 30 seconds. This is the time any port on the |
| switch spends in the listening state while |
| moving from the blocking state to the |
| forwarding state. |
Bridge Priority (0- | A Bridge Priority for the switch can be set |
65535 Sec) <32768> | from 0 to 65535. This number is used in the |
| voting process between switches on the |
| network to 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. |
STP Version | Choose rstp or StpCompatibility. Both |
| versions use STP parameters in the same |
| way. RSTP is fully compatible with IEEE |
| 802.1d STP and will function with legacy |
| equipment. |
TX Hold | This is the maximum number of Hello |
| packets transmitted per interval. The count |
| can be specified from 1 to 10. The default |
| value is 3. |
Forwarding BPDU | This allows you to control whether or not to |
<Enabled> | forward Bridge Protocol Data Units. |
| Disabling this setting can be useful if, for |
| example, the present switch has been |
| designated as the root bridge and you do not |
| want that status to change. |
Note: The Hello Time cannot be longer than the Max. Age. Otherwise, a configuration error will occur.
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