Basic OTN Training – Up to 100Gbps/OTU4

Basic OTN Training – Up to 100Gbps/OTU4

We’ve designed this training session for Engineering Professionals that which to have an In-depth Training Session on the Basics of OTN (Optical Transport Network).

This Course will cover the following topics

  • Why OTN?

    • Why did we stop working with SONET/SDH?
    • And why did we not just go with “plain” 40/100GbE?
    • Review of the OTN Protocol Stack.
  • OTN Framing

    • A Review of the Basic OTUk Frame,
    • The Basic ODUk Frame, and
    • The Basic OPUk Frame
  • Non-OTN Client Mapping

    • BMP (Bit Synchronous Mapping Procedure)
    • AMP (Asynchronous Mapping Procedure)
    • GMP (Generic Mapping Procedure)
      • Example of GMP mapping a 100GBASE-R signal into an OPU4
  • OTN Client Mapping (mapping/multiplexing Lower-Speed ODUj signals into Higher-Speed OPUk/ODUk signals)

    • PT = 0x20 Types of Mapping
    • PT = 0x21 Types of Mapping
  • Section Terminating Equipment (STE) versus Path Terminating Equipment (PTE)

    • What is a Section and what is an STE?
    • What is a Path and what is a PTE?
    • How is an STE different from a PTE?
  • Interfacing OTN to other Components

    • Interfacing OTU3 to the Optical Line-Side Interface (OTL3.4)
    • Interfacing OTU4 to Client Side Interfaces (OTL4.10)
    • Interfacing OTU4 to the Optical Line-Side Interface (OTL4.4)
  • Defect Declaration/Clearance, Error Detection/Correction, and Performance Monitoring

    • At the Section Terminating Equipment (OTUk-Layer)
      • Error Correction (Forward Error Correction)
      • Error Detection (BIP-8)
      • Defects
        • How are Defects Declared and Cleared
        • Defect Hierarchy (do some defect suppress the assertion of other defects?)
        • Consequent Action (How should a system respond when defects are declared?)
        • List of Defects
          • dLOF – Loss of Frame
          • dLOM – Loss of Multiframe
          • dAIS – OTUk-AIS (Alarm Indication Signal)
          • dTIM – Section Trail Trace Identifier Mismatch
          • dDEG – Section Layer – Signal Degrade
          • dBDI – Backward Defect Indicator
          • dIAE – Input Alignment Error
          • dBIAE – Backward Input Alignment Error
          • dLOL – Loss of Lane Alignment Defect (for OTL3.4, OTL4.10 or OTL4.4 applications only)
          • dLOFLANE – Loss of Frame Defect of Logical Lane (for OTL3.4, OTL4.10 or OTL4.4 applications only)
    • At the Path Terminating Equipment (ODUk-Layer)
      • Error Detection
      • Defects
        • How are Defects Declared and Cleared
        • Defect Hierarchy (do some defects suppress the assertion of other defects?)
        • Consequent Action (How should a system respond when defects are declared?)
        • List of Defects
          • dAIS – ODUk-AIS
          • dTIM – Path Trail Trace Identifier Mismatch
          • dPLM – Payload Mismatch
          • dDEG – Path Layer – Signal Degrade
          • dMSIM – Multiplex Structure Identifier Mismatch (only when mapping/multiplexing lower-speed ODUj signals into an OPUk/ODUk signal, k > j).
          • dLOFLOM – Loss of Frame/Loss of Multiframe Defect (only when mapping/multiplexing lower-speed ODUj signals into an OPUk/ODUk signal, k > j).
  • Tandem Connection Monitoring (TCM)

  • Why do we need and use TCM?
  • How does TCM work?
    • Cascaded TCM Domains
    • Nested TCM Domains
  • What kind of Defects do we declare for TCM?
  • Automatic Protection Switching (APS)

    • Sub-Network Circuit (SNC) vs Trail Protection
      • Why is SNC Protection more popular than Trail Protection?
      • Types of SNC Protection/Monitoring
        • SNC/I – Inherent Monitoring
        • SNC/N – Non-Intrusive Monitoring
          • SNC/Ne – Non-Intrusive (End-to-End) Monitoring
          • SNC/Ns – Non-Intrusive (Sub-Layer) Monitoring
        • SNC/S – Sub-Layer Monitoring
    • Linear APS
      • Basic 1+1 Protection Switching
      • Basic 1:n Protection Switching
      • Supporting Linear APS without using the APS/PCC channel
      • Supporting Linear APS with using the APS/PCC channel.
    • Shared Ring APS
      • 2-Fibre/2-Lambda Shared Ring Systems
      • 4-Fibre/4-Lambda Shared Ring Systems
        • Span Switching
        • Ring Switching
  • Timing/Jitter Requirements for OTN and Client signals

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