Sonet multiplexing - PowerPoint PPT Presentation

ELEN 602 Lecture 7

Review of last lecture Select Repeat ARQ Performance of different ARQ schemes Data link layer -- framing HDLC PPP. ELEN 602 Lecture 7. Multiplexing. (a). (b). A. A. A. A. Trunk group. B. B. B. MUX. MUX. B. C. C. C. C. A. f. W. 0. B. f. 0. W. C. B. A. f. C.

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Section 2.3

Point-to-Point Links: Framing. Section 2.3. Framing. Demarcates (Separates) units of transfer Goal Enable nodes to exchange blocks of data Challenge How can we determine exactly what set of bits constitute a frame? How do we determine the beginning and end of a frame?. Why Framing?.

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SONET MULTIPLEXING

SONET MULTIPLEXING. By Sadhish Prabhu. Multiplexing principles of SONET. Mapping —used when tributaries are adapted into VTs by adding justification bits and POH information

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