What are the three frame types supported by HDLC? Describe each.

Which frames are supported by HDLC?
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"Information frames (I-frames) carry the data to be transmitted for the user (the logic above HDLC that is using HDLC). Additionally, flow and error control data, using the ARQ mechanism, are piggybacked on an information frame. Supervisory frames (S-frames) provide the ARQ mechanism when piggybacking is not used. Unnumbered frames (U-frames) provide supplemental link control functions."
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"This manage field of operation regarding HDLC practices the particular tackle field which is the other part of wholly HDLC support frames. The top-attempt support will be provided with the use of You (us-by using numbers) support frames which includes a solitary byte. Just about all supports take a field connected with sizing one particular little bit called this ""particular study/remaining"" act and is used by the actual checkpointing method to verify right transmittal. "
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