OTN – Lesson 10 – Video 5M – Conclusion of the ODUkP/ODUj-21_A_Sk Function

This post presents the 5th of the 6 Videos that covers training on the Peformance Monitoring of the ODUk Layer (for Multiplexed Applications). This post focuses on the Sink Direction ODU-Layer Atomic Functions.

OTN – Lesson 10 – Video 5M – Conclusion of the ODUkP/ODUj-21_A_Sk Atomic Function

This blog post includes a video that continues our discussion of the ODUkP/ODUj-21_A_Sk Atomic Function.  

In this case, we will now start talking about defects that this function declares within the Lower-Speed ODUj Tributary Signals, that it demultiplexes and demaps from the incoming ODUk Server Signal.

These defects include:

  • dMSIM[p] – Multiplex Structure Identifier Mismatch – for each ODUj Tributary Port signal, p, and
  • dLOFLOM[p] – Loss of Frame, Loss of Multi-Frame Defect (again) for each ODUj Tributary Port signal, p.  

NOTE:  We describe how the ODUkP/ODUj-21_A_Sk function declares and clears the dLOFLOM defect condition, as we walk through the dLOFLOM/In-Frame State Machine Diagram.  

Afterward, we discuss:

  • Defect Correlation Equations and Analyis, and
  • Consequent Equation Analysis

Finally, we wrap up and summarize the ODUkP/ODUj-21_A_Sk Function.

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OTN – Lesson 10 – Video 2M – The OTUk/ODUk_A_Sk and ODUk_TT_Sk Atomic Functions

This post presents the 2nd of the 6 Videos that covers training on the Peformance Monitoring of the ODUk Layer (for Multiplexed Applications). This post focuses on the Sink Direction ODU-Layer Atomic Functions.

OTN – Lesson 10 – Video 2M – The OTUk/ODUk_A_Sk and ODUk_TT_Sk Atomic Functions

This blog post includes a video that begins our discussion of the Sink (or Receive) Direction Atomic Function/Circuitry for the ODU-Layer/Multiplexed Applications.  

In particular, this video reviews the following Atomic Functions

  • OTUk/ODUk_A_Sk Function
  • ODUk_TT_Sk Function

NOTE:  Even though we did review these functions back in the Non-Multiplexed portion of Lesson 10 Training; I wanted to review the Consequent Equations for these functions (once again), because these equations do impact the signals that the ODUkP/ODUj-21_A_Sk function (downstream) will “see”.

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OTN – Lesson 10 – Video 5N – ODUk_TT_Sk Atomic Function

This post presents the 5th of the 7 Videos that covers training on the Peformance Monitoring of the ODUk Layer (for Non-Multiplexed Applications). This post focuses on the Sink Direction ODU-Layer Atomic Functions. More specifically, this post presents a video that discusses how the ODUk_TT_Sk Atomic Function declares and clears the PM-dDEG defect condition.

OTN – Lesson 10 – Video 5 – The ODUk_TT_Sk Atomic Function

This blog post presents a video that continues our discussion of the ODUk_TT_Sk Atomic Function.  

This video covers the following features within the ODUk_TT_Sk Atomic Function.

  • How it declares and clears the dDEG (Path Signal Degrade) defect condition.
  • What the ODUk_TT_Sk function do with its AI_TSF Output pin whenever it declares a Service-Affecting defect condition.
  • What the ODUk_TT_Sk function do with its AI_TSD Output pin whenever it declares the dDEG (Signal Degrade) defect condition.  
  • Defect Correlation Equation Analysis
  • Consequent Equation Analysis 
  • Performance Monitoring Equation Analysis

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OTN – Lesson 9 – Video 10 – OTUk/ODUk_A_Sk Function

This post presents the 10th of the 11 Videos that covers training on Performance Monitoring at the OTUk Layer. This post focuses on the Sink Direction OTU-Layer Atomic Functions.

OTN – Lesson 9 – Video 10 – OTU Layer Sink Direction Circuitry/Functionality – Part 8

This blog post contains a video that completes much of the Sink (or Receive) Direction Atomic Function circuitry at the OTU Layer.  

In particular, this function will discuss the role/functionality of the OTUk/ODUk_A_Sk Atomic Function.  

As we discuss this Atomic Function, we will focus on the following items.

  • APS (Automatic Protection Switching) features/hooks within the OTUk/ODUk_A_Sk function.
  • Forcing the OTUk/ODUk_A_Sk function to transmit the ODUk-LCK Maintenance Signal downstream.
  • How the OTUk/ODUk_A_Sk function responds to the upstream OTUk_TT_Sk function asserting the AI_TSF and AI_TSD output signals.
  • Consequent Equation Analysis
  • The ODUk-AIS Maintenance Signal
  • Summary of the OTUk/ODUk_A_Sk Function

And finally, a review of the ODUk-OCI Maintenance Signal.

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OTN – Lesson 9 – Video 9 – OTUk_TT_Sk Function/Conclusion

This post presents the 9th of the 11 Videos that covers training on Performance Monitoring at the OTUk Layer. This post focuses on the Sink Direction OTU-Layer Atomic Functions.

OTN – Lesson 9 – Video 9 – OTU Layer Sink Direction Circuitry/Functionality – Part 7

This blog post contains a video that concludes our discussion of the OTUk_TT_Sk Atomic Function.  

In particular, this video discusses the following aspects of the OTUk_TT_Sk Function.

  • Defect Correlation Equations/Analysis
  • Consequent Equations/Analysis
  • Performance Monitoring Equations/Analysis

Finally, this video summarizes and wraps up the training/discussion of the OTUk_TT_Sk Atomic Function.

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OTN – Lesson 9 – Video 5 – Conclusion of OTSiG/OTUk_A_Sk Function

This post presents the 5th of 11 Videos that covers training on Performance Monitoring at the OTU Layer. This post focuses on the Sink Direction OTU-Layer Atomic Functions.

OTN – Lesson 9 – Video 5 – OTU Layer Sink Direction Circuitry/Functionality – Part 3

This blog post contains another video that focuses on (and wraps up our discussion on) the OTSiG/OTUk_A_Sk Atomic Function.  

This video serves as Part 3, within our Sink (or Receive) Direction Analysis of OTU-Layer Atomic functions.  This video is also the 5th of 11 videos within Lesson 9.  

We start out this video by reviewing the complete list of defects that the OTSiG/OTUk_A_Sk function declares and clears.  Afterward, I introduce you to the following:

  • The concept/purpose of Consequent Equations
  • A Review (and interpretation) of Consequent Equations for the OTSiG/OTUk_A_Sk Atomic Function.  
  • Introduction to Defect Correlation
  • A Review of the Defect Correlation Equations for the OTSiG/OTUk_A_Sk Atomic Function.
  • A Review of the Performance Monitoring Equations for the OTSiG/OTUk_A_Sk Atomic Function.  
  • A Final Summary of the OTSiG/OTUk_A_Sk Atomic Function.  

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