Olicom CrossFire 8730, Reference Manual

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CrossFire 8730 Switch Reference Guide, DOC-7047 v. 1.1 Switch Configuration
The minimum value is 1. The maximum value is the lower of 10 or ((Switch
Maximum Message Age / 2) – 1).
The valid range for this parameter is displayed when you select Switch Hello Time.
Switch Maximum Message Age (in Seconds)
Maximum message age used when this CRF is the root in STP. This parameter sets
the time at which the configuration message used by the spanning tree algorithm
should be discarded. The default is 20. The minimum value is the higher of 6 or
((Switch Hello Time x 2) + 1).
The maximum cannot be more than the lower of 40 or ((Switch Forward Delay x
2) – 1).
The range limits that appear when you select this parameter are calculated using the
values currently selected for Switch Hello Time and Switch Forward Delay.
Switch Forward Delay (in Seconds)
The time the switch waits between transitions from listening to learning and from
learning to forwarding. The default is 15. The minimum is the larger of 4 or
((Switch Maximum Message Age
/
2) + 1). The maximum is 30.
The lower range limit that appears when you select this parameter reflects the value
currently selected for Switch Maximum Age.
Port Spanning Tree Parameters...
Selecting this item brings up the Port Spanning Tree Parameters screen.