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 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 ODU-Layer (or upstream OTU-Layer) defect.

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 the Link or Local Fault Indicator?

This video answers these questions and more.

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

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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 6M – 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

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OTN – Lesson 10 – Video 4N – More of the ODUk_TT_Sk Atomic Function

This post presents the 4th 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 includes a video that describes how the ODUk_TT_Sk Atomic Function declares and clears the dTIM, ODUk-AIS, dLCK and dOCI defect conditions.

OTN – Lesson 10 – Video 4N – More of the ODUk_TT_Sk Atomic Function

This blog post includes a video that continues to describe the role/functionality of the ODUk_TT_Sk atomic function.

In particular, this video explains how the ODUk_TT_Sk function declares and clears the following defect conditions.

dTIM – Trail Trace Identifier Mismatch defect
dAIS – ODUk-AIS defect condition
dLCK- ODUk-LCK defect condition
dOCI – ODUk-OCI defect condition

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Lesson 2 – ODU Framing

This post provides a comprehensive review and video training of the ODU frame and its overhead fields.

Lesson 2 – ODU (Optical Data Unit) Frame Training

This post presents a video that discusses the ODU (Optical Data Unit) Frame in considerable detail.

In addition to discussing the ODU frame format, this video also discusses the ODU overhead fields and their roles.

Finally, this video discusses special ODUk signals, such as ODU0, ODU2e, and ODUflex.

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