| ||
Parameter | Default | Description |
Max | 20 | The maximum time (in seconds) a device can |
(Message) |
| wait without receiving a configuration message |
Age |
| 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 device |
Delay |
| 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.
Maximum value is 30.
Minimum value is the higher of
4 or [(Max. Message Age / 2) + 1].
