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OSI protocols
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==Layer 2: data link layer== The [[data link layer]] packages raw bits from the physical layer into [[Data frame|frames]] (logical, structured packets for data). It is specified in [http://www.itu.int/rec/T-REC-X.212/en/ ITU-T Rec. X.212 <nowiki>[ISO/IEC 8886]</nowiki>], [http://www.itu.int/rec/T-REC-X.222/en/ ITU-T Rec. X.222] and others. This layer is responsible for transferring frames from one host to another. It might perform error checking. This layer further consists of two sublayers: [[Media access control|MAC]] and [[Logical link control|LLC]].
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