Cell Switching

The newest switching technology called Cell Switching uses small

fixed length data units called cells (ATM 53 octets) that are stored

and forwarded.

• Asynchronous transfer mode (ATM) is an example of a

cell switched system. Its cell size is 53 bytes (header 5 + data 48

octets).

• ATM is a compromise between the synchronous circuit-switched

and the packet-switched systems both in delays, resource use

and complexity.

• Cell switching is a preferred technology for the Broadband

ISDN (B-ISDN) because of the flexible data transfer rates.

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