Chapter 11 Spanning Tree Protocol
Figure 53 MRSTP: Configuration
The following table describes the labels in this screen.
Table 29 MRSTP: Configuration
LABEL | DESCRIPTION |
|
|
Status | Click Status to display the MRSTP Status screen (see Figure 54 on page 112). |
|
|
Tree | This is a read only index number of the STP trees. |
|
|
Active | Select this check box to activate an STP tree. Clear this checkbox to disable an |
| STP tree. |
Bridge Priority | Bridge priority is used in determining the root switch, root port and designated port. |
| The switch with the highest priority (lowest numeric value) becomes the STP root |
| switch. If all switches have the same priority, the switch with the lowest MAC |
| address will then become the root switch. Select a value from the |
| box. |
| The lower the numeric value you assign, the higher the priority for this bridge. |
| Bridge Priority determines the root bridge, which in turn determines Hello Time, |
| Max Age and Forwarding Delay. |
Hello Time | This is the time interval in seconds between BPDU (Bridge Protocol Data Units) |
| configuration message generations by the root switch. The allowed range is 1 to 10 |
| seconds. |
Max Age | This is the maximum time (in seconds) a switch can wait without receiving a BPDU |
| before attempting to reconfigure. All switch ports (except for designated ports) |
| should receive BPDUs at regular intervals. Any port that ages out STP information |
| (provided in the last BPDU) becomes the designated port for the attached LAN. If it |
| is a root port, a new root port is selected from among the switch ports attached to |
| the network. The allowed range is 6 to 40 seconds. |
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