USING THE SYSTEM CONFIGURATION PROGRAM
Parameter | Default | Description |
Max | 20 | The maximum time (in seconds) a device can |
(Message) |
| wait without receiving a configuration |
Age |
| message before attempting to reconfigure. All |
|
| device ports (except for designated ports) |
|
| should receive configuration messages at |
|
| regular intervals. Any port that ages out STA |
|
| information (provided in the last configuration |
|
| message) becomes the designated port for the |
|
| attached LAN. If it is a root port, a new root |
|
| port is selected from among the device ports |
|
| attached to the network. |
|
| The minimum value is |
|
| the higher of 6 or [2 x (Hello Time + 1)]. |
|
| The maximum value is |
|
| the lower of 40 or [2 x (Forward Delay - 1)]. |
Forward | 15 | The maximum time (in seconds) the root |
Delay |
| device will wait before changing states (i.e., |
|
| listening to learning to forwarding). This delay |
|
| is required because every device must receive |
information about topology changes before it starts to forward frames. In addition, each port needs time to listen for conflicting information that would make it return to a blocking state; otherwise, temporary data loops might result.
The maximum value is 30.
The minimum value is
the higher of 4 or [(Max. Message Age / 2) + 1].
