differences between ATM and Ethernet

Asynchronous Transfer Mode (ATM): is a high speed networking protocol commonly used by internet providers to delivery both voice and data services. ATM operated at layer 2(data link layer).

Ethernet: a local area networking protocol which operated at layer 1 and layer 2.

  ATM Ethernet
routing no, connected by ATM swithes yes, routers are used
packet size fixed, 53bytes variable
coverage WAN LAN
speed Mbps Gbps
major benefits ideal for building hub;  backbone as IP runs over Ethernet


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