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Physical Interface methods
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UNI - User-to-Network Interface (interface between host and a switch); specifications UNI 3.0, UNI 3.1, UNI 4.0. Two UNIs exist: Private UNI (interface between host and a private switch) and Public UNI (interface between host and a public network switch)
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NNI - Network-to-Network Interface (interface between two adjacent switches). There are Private and Public NNI
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DXI - Data Exchange Interface (interface between DTE (router) and DCE (like DSU)
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FUNI - Frame UNI: Instead od segmenting data into cells at the end user, the end user transmits FUNI-formatted variable length frames into the ATM network. Segmentation (and reassembly) is done by FUNI ATM switch
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B-ICI - Broadcast Intercarrier Interface - inables two adjacent ATM networks to interconnect and provide a set of end-to-end services
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