Asante Technologies 6200 manual Configuring Timers

▲Important: The lower the number, the more likely it is that the switch will be the Root Bridge. See Table 7-1 on page 7-5 for more information.

4 Press Return.

The switch priority is changed.

Configuring Timers

The Spanning Tree timers — Maximum Age, Hello Time, and Forward Delay — determine the operation of the entire network because they control the way the IntraSwitch interacts with other switches and bridges.

Before changing any of these timers’ values, review the following section on timer relationships:

Timer Relationships

The timer values are related to each other, as expressed by the following formula (where the time unit is in seconds):

2 x (Forward Delay — 1)≥ MaxAge ≥ 2 x (Hello Time +1)

This means the following:

The value of the Maximum Age timer must not be more than twice the value of the Forward Delay timer.

The value of the Maximum Age timer must be at least twice the value of the Hello timer.

Increasing the length of these timers makes the switch less sensitive and more stable. When links or entire switches change states between forwarding and non-forwarding states, this affects the topology of the entire network.

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