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in a sonet identify between a section aline apath

In a SONET identify between a section a line a path

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SONET stands for Synchronous Optical Network. SONET is a communication protocol that is used to transmit a large amount of data over relatively large distances using optical fibre.

SONET Layers:- SONET Layers

1. Path Layer:

  • It is end-to-end portion of the network.
  • Path layer is used for the movement of signals from its optical source to its optical destination.
  • Path layer functions are provided by STS Mux/Demux.

2. Line Layer:

  • It is portion of network connecting two neighbouring multiplexers.
  • Line Layer is responsible for the movement of signal across a physical line.
  • Line layer functions are provided by STS Mux/Demux and Add/Drop Mux .

3. Section Layer:

  • It is portion of network connecting two neighbouring devices.
  • Section layer is responsible for the movement of signal across a physical section.
  • Each device of network provides section layer functions.

4. Photonic Layer:

  • It is the physical layer of the OSI model.
  • This layer includes physical specifications for the optical fibre channel.
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