OTN – Lesson 10 – Video 7N – Extraction of a 100GBASE-R Client Signal from an ODU4 Signal

This post presents the 7th of the 7 Videos that covers training on the Peformance Monitoring of the ODUk Layer (for Non-Multiplexed Applications). This post focuses on the 100Gbps Ethernet Adaptation Sink Atomic Function, within the Sink Direction ODU-Layer Atomic Functions.

OTN – Lesson 10 – Video 7 – ODUkP/CBR_ETC100GR-g_A_Sk Atomic Function

This video discusses how the ODUkP/CBR_ETC100GR-g_A_Sk (100Gbps Ethernet Adaptation Sink) Atomic Function processes an ODU4 signal that it receives from the upstream ODUk_TT_Sk Function.  

In particular, this video discusses how this function terminates the ODU4 overhead, extracts out, processes and terminates the OPU4 overhead before it extracts and processes the 100GBASE-R client signal.

Continue reading “OTN – Lesson 10 – Video 7N – Extraction of a 100GBASE-R Client Signal from an ODU4 Signal”

OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal – Video 3

This post presents both information and video training on how we take an OTL4.4 signal and recombine it back into a composite OTU4 signal. This post serves as the third of 3 videos for the OTL4.4 Sink Terminal.

In this video we focus on the Lane Alignment Recovery Block and Skew Compensation.

OTN – Lesson 7 – Converting OTL4.4 Signals back into a Composite OTU4 Signal – Video 3

This blog post presents the 3rd (of a set of 3 videos) that discusses how we convert an OTL4.4 Interface (or set of signals) back into a single (composite) OTU4 signal.  

In particular, this video discusses the following:

  • It discuss how the OTSiG/OTUk_A_Sk function declares and clears the dLOR (Loss of Recovery) defect condition, for each of the 20 Logical Lanes, by walking through the Lane Alignment Recovery Block – LOR/OOR/IR State Machine diagram.  
  • This video also discusses Lane-to-Lane Skew Compensation, and
  • How the OTSiG/OTUk_A_Sk function declares or clears the dLOL defect condition, and 
  • How the OTSiG/OTUk_A_Sk function combines the 20 Logical Lanes back into a single (composite) OTU4 signal.  

Continue reading “OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal – Video 3”

OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal – Video 2

This post presents both information and video training on how we take an OTL4.4 signal and recombine it back into a composite OTU4 signal. This post serves as the second of 3 videos for the OTL4.4 Sink Terminal.

OTN – Lesson 7 – Converting OTL4.4 Signals back into a Composite OTU4 Signal – Video 2 of 3

This blog post contains the 2nd of 3 videos that discusses how we convert an OTL4.4 interface (or set of signals) back into a single (composite) OTU4 signal.  

This particular video discusses how we declare and clear the dLOFLANE (Loss of Frame of Logical Lane) defect condition (by walking through the OTL4.20 dLOFLANE/In-Frame State Machine.  

This video also starts the discussion of how we declare the dLOR (Loss of Recovery) defect for each of the 20 Logical Lanes.  

Continue reading “OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal – Video 2”

OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal

This post presents both information and video training on how we take an OTL4.4 signal and recombine it back into a composite OTU4 signal. This post serves as the first of 3 videos for the OTL4.4 Sink Terminal.

This video introduces the OTL4.4 Sink Terminal (and the OTSiG/OTUk_A_Sk Atomic Function) and focuses on the Lane Frame Alignment Block and the dLOFLANE/In-Frame State Machine Diagram.

OTN – Lesson 7 – Converting OTL4.4 Signals back into a Composite OTU4 Signal – Video 1 of 3

This blog post contains the first (of 3) videos that describes how we take an OTL4.4 Interface (or set of signals) and converts these signals back into a single (composite) OTU4 signal.  

This particular video introduces the OTSiG/OTUk_A_Sk Atomic Function (which is a fancy word for OTL4.4 Sink Terminal).  

This video discusses how the OTSiG/OTUk_A_Sk Function accepts electrical lane signals from an Optical Module (in the OTL4.4 format) and processes these signals by:

  • Checking to see if we should declare/clear the dLOS-P (Loss of Signal – Path) Defect condition with these Electrical Lane signal, and
  • De-Multiplexing these signals into the 20 Logical Lane signal.  

Continue reading “OTN – Lesson 7 – Converting OTL4.4 Back into an OTU4 Signal”

OTN – Lesson 10 – Handling Defects at the ODU-Layer – Defect Scenario Video

In this video, we presume that some ODUk- (or OTUk-) Layer circuitry is declaring a certain defect condition. We then determine how ODU-layer circuitry is expected to respond.

OTN – Lesson 10 – Handling Defects at the ODU-Layer – Defect Scenario for Multiplexed and Non-Multiplexed Applications

This video summarizes each of the various defects that OTN circuitry can declare/clear at the ODU-Layer.  

This video also describes how ODU-Layer circuitry is expected to respond to each of these ODU-Layer (or upstream OTU-Layer) defects.  

  • Should it transmit PM-BDI (Path Monitoring – Backward Defect Indicator) upstream?
  • Should it replace the under-lying 100oBASE-X or 100GBASE-R client signal with either the Link or Local Fault Indicator?  

NOTE:  This video covers both Non-Multiplexed and Multiplexed Applications.

Continue reading “OTN – Lesson 10 – Handling Defects at the ODU-Layer – Defect Scenario Video”

OTN – Lesson 10 – Video 6M – End of ODU-Layer/Multiplexed Sink Circuitry

This post presents the 6th 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 6 – The ODU0_TT_Sk and ODUkP/CBR_ETC1000X_A_Sk Atomic Functions

This blog post contains a video that wraps up our discussion of the Sink (or Receive) Atomic Function circuitry for the ODU-Layer/Multiplexed Applications.  

More specifically, this video includes a discussion of the following Atomic Functions.

  • ODU0_TT_Sk Function, and
  • ODU0P/CBR_1000X-g_A_Sk Function

Continue reading “OTN – Lesson 10 – Video 6M – End of ODU-Layer/Multiplexed Sink Circuitry”

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 – 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.

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

OTN – Lesson 10 – Video 4M – ODUkP/ODUj-21_A_Sk Atomic Function

This post presents the 4th 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 4 – Continuation with the ODUkP/ODUj-21_A_Sk Atomic Function

This blog post contains a video that continues our discussion of the ODUkP/ODUj-21_A_Sk Atomic Function.  Further, this video picks up (where we left off in Video 3) where we were discussing the need to maintain synchronization with the OMFI byte-field, and

It proceed to describe how the ODUkP/ODUj-21_A_Sk declares and clears the dLOOMFI defect condition, as we walk through the dLOOMFI/In-Multi-Frame State Machine Diagram.  

Continue reading “OTN – Lesson 10 – Video 4M – ODUkP/ODUj-21_A_Sk Atomic Function”

OTN – Lesson 10 – Video 3M – ODUkP/ODUj-21_A_Sk Function

This post presents the 3rd 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 3 – The ODUkP/ODUj-21_A_Sk (The ODUk to ODUj Multiplex Sink) Atomic Function

This page contains a video that discusses the ODUkP/ODUj-21_A_Sk Atomic Function in detail.  

The purpose of this Atomic Function is to accept an ODUkP server signal, and de-multiplex and de-map out each of the various lower-speed ODUj tributary signals within this ODUkP server signal.  

And More….

Continue reading “OTN – Lesson 10 – Video 3M – ODUkP/ODUj-21_A_Sk Function”

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”.

Continue reading “OTN – Lesson 10 – Video 2M – The OTUk/ODUk_A_Sk and ODUk_TT_Sk Atomic Functions”