Fixed-size cells simplify requirements on the switching hardware (ATM, SMDS)
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higher speeds; shorter transit delay; more efficient handling in queues; no link level error recovery (higher protocols are responsible for error checking in payload portion)
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switch operation based on lookups in local translation table (inPort, inVPI, inVCI) <--> (outPort, outVPI, outVCI)
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Most suitable to carry voice, video,data,image over the same physical link
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Referred to as cell relay
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Connectionless cell switching DQDB (IEEE 802.6) used by SMDS services; connection-oriented and connection-less used in ATM (53-byte cells)
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