What is the difference between a virtual channel and a virtual path?

HOw can one differentiate virtual channel and virtual path?
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"A virtual channel is a logical connection similar to virtual circuit in X.25 or a logical channel in frame relay. In ATM, virtual channels which have the same endpoints can be grouped into virtual paths. All the circuits in virtual paths are switched together; this offers increased efficiency, architectural simplicity, and the ability to offer enhanced network services."
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Asynchronous Transfer Mode (Cash machine), where the lap can be acknowledged with a personal route identifier (VPI) and also virtual channel identifier (VCI) pair. Credit is treacherous, but may supply certain QoS.
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