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Explain Asynchronous FDDI
Asynchronous bandwidth is allocated utilizing an eight-level priority scheme. Every station is assigned an asynchronous priority level.
FDDI as well permits extended dialogues in which stations may temporarily use all asynchronous bandwidth.
The FDDI priority mechanism is able to lock out stations that cannot use synchronous bandwidth
Take the maximum packet lifetime, T. It's stated that T must be big enough to make sure the packet and its ACK have vanished. Why do we have to have the ACK?
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