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DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
The Hello Time cannot be longer than the Max. Age. Otherwise, a configuration
error will occur.
Observe the following formulas when setting the above parameters:
Max. Age ≤ 2 x (Forward Delay - 1 second)
Max. Age ≥ 2 x (Hello Time + 1 second)
STP Group Configuration
To define which ports will be members of an STP Group, highlight Group Create/Delete and press
Enter.
Figure 6-73. STP Group Configuration screen
Toggle the Action field to Add/Modify. Choose a name for the group and enter it in the Group Name
field. The group name does not necessarily have to correspond to any name that has been previously
entered in the switch’s configuration.
Figure 6-74. Port Spanning Tree Settings screen
Toggle the View Ports field to the range of ports to be configured. The Fast Ethernet ports displayed for
configuration in groups of 12 and the two (optional) Gigabit Ethernet ports are displayed together.
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