![](/images/new-backgrounds/1223055/223055411x1.webp)
Using the BayStack 450 10/100/1000 Series Switch
Table 3-26. Spanning Tree Switch Settings Parameters (continued)
Parameter | Description |
|
|
| |
Forward Delay | Indicates the Forward Delay parameter value that the root bridge is currently using. This | |
| value specifies the amount of time that the bridge ports remain in the Listening and | |
| Learning states before entering the Forwarding state. | |
| Note that the root bridge’s Forward Delay parameter value becomes the actual Forward | |
| Delay parameter value for all bridges participating in the spanning tree network. See also | |
| Bridge Forward Delay. | |
| Default Value | 15 seconds |
| Range | 4 to 30 seconds |
Bridge Hello | Indicates the Hello Interval (the amount of time between transmissions of BPDUs) | |
Time | specified by management for this bridge. This parameter takes effect only when this | |
| bridge becomes the root bridge. | |
| Note that, although you can set the Hello Interval for a bridge using bridge management | |
| software, once the spanning tree computation process is complete, all bridges | |
| participating in the spanning tree network use the root bridge’s Hello Interval parameter | |
| value. If any bridge becomes the root bridge, its Hello Interval parameter value becomes | |
| the Actual Hello Interval parameter value for all bridges participating in the spanning tree | |
| network. See also Hello Time. | |
| Default Value | 2 seconds |
| Range | 1 to 10 seconds |
Bridge | Specifies the maximum age (in seconds) that a Hello message can attain before it is | |
Maximum Age | discarded. This parameter, specified by management for this bridge, takes effect only | |
Time | when the bridge becomes the root bridge. | |
| Note that, if this bridge becomes the root bridge, its Maximum Age Time parameter value | |
| becomes the Actual Maximum Age Time parameter value for all bridges participating in | |
| the spanning tree network. See also Maximum Age Time. | |
| Default Value | 20 seconds |
| Range | 6 to 40 seconds |
Bridge Forward | Indicates the Forward Delay parameter value specified by management for this bridge. | |
Delay | This parameter takes effect only when this bridge becomes the root bridge. | |
| The Forward Delay parameter value specifies the amount of time that the bridge ports | |
| remain in the Listening and Learning states before entering the Forwarding state. | |
| Note that all bridges participating in the spanning tree network use the root bridge’s | |
| Forward Delay parameter value. See also Forward Delay. | |
| Default Value | 15 seconds |
| Range | 4 to 30 seconds |
|
|
|