Accton Technology CheetahSwitch Workgroup-3514F, Руководство по управлению

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Configuring the Switch
2-23
Hello Time 2 Time interval (in seconds) at which the root device transmits a
configuration message.
The minimum value is1.
The maximum value is the lower of 10 or [(Max. Message Age / 2) -1].
Max (Message)
Age
20 The maximum time (in seconds) a device can wait without receiving a
configuration message before attempting to reconfigure. All device ports
(except for designated ports) should receive configuration messages at
regular intervals. Any port that ages out STA information (provided in
the last configuration message) becomes the designated port for the
attached LAN. If it is a root port, a new root port is selected from among
the device ports attached to the network.
The minimum value is the higher of 6 or [2 x (Hello Time + 1)].
The maximum value is the lower of 40 or [2 x (Forward Delay - 1)].
Forward Delay 15 The maximum time (in seconds) the root device will wait before
changing states (i.e., listening to learning to forwarding). This delay is
required because every device must receive information about topology
changes before it starts to forward frames. In addition, each port needs
time to listen for conflicting information that would make it return to a
blocking state; otherwise, temporary data loops might result.
The maximum value is 30.
The minimum value is the higher of 4 or [(Max. Message Age / 2) + 1].
Parameter Default Description