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Behavior of the Requesting Peer

The requesting peer examines the ack messages it receives. It compares the source instance in each subsequent ack message with the previous value. If the value differs or is set to zero, then the requesting peer treats the acknowledging peer as if communication has been lost.

The requesting peer also determines whether the acknowledging peer is reflecting back the requesting peer’s source instance. If the acknowledging peer advertises a wrong value in the destination instance field of the ack message, then the requesting peer treats the acknowledging peer as if communication has been lost.

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