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 7N – 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.

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OTN – Lesson 10 – Video 1N (100Gbps Ethernet Adaptation Source) Atomic Function

This post presents the 1st of the 7 Videos that covers training on the Peformance Monitoring of the ODUk Layer (for Non-Multiplexed Applications). This post focuses on the Source Direction ODU-Layer Atomic Functions.

OTN – Lesson 10 – Video 1 – The ODUkP/CBR-ETC100GR-g_A_So (or 100Gbps Ethernet Adaptation Source) Atomic Function

This video begins our discussion of the Source-Direction ODU-Layer Atomic Functions for Non-Multiplexed Applications.

This video begins with a high-level overview of the Source-Direction circuitry (for Non-Multiplexed Applications). Afterward, this video covers the ODUkP/CBR-ETC100GR-g_A_So (or 100Gbps Ethernet Adaptation Source Atomic Function).

This atomic function takes a 100GBASE-R client signal and maps it into an ODU4 server signal.

This video discusses much of the processing that the ODUkP/CBR-ETC100GR-g_A_So Atomic Function will perform on this 100GBASE-R signal, as GMP maps this signal into an ODU4 server signal.

Check Out the Video Below

Continue reading “OTN – Lesson 10 – Video 1N (100Gbps Ethernet Adaptation Source) Atomic Function”

Defect – Definition

This post presents ITU-T G.806’s definition of a defect or defect condition.

Defect – Definition

ITU-T G.806 defines the word defect as follows:

Defect: The density of anomalies has reached a level where the ability to perform a required function has been interrupted.

We use defects as an input for performance monitoring, controlling consequent actions, and determining fault causes.

In other words, defects are bad.

If some piece of networking equipment is declaring a defect condition, it is saying it “cannot do its job properly” because of this condition.

Defects that We Cover in this Blog

We cover the following defects in this blog.

For OTN Applications

OTU Layer
  • dLOS-P – Loss of Signal – Path
  • dLOS-P[i] – Loss of Signal – Path, Electrical Lane, i
  • dLOFLANE[j] – Loss of Frame – of Logical Lane j
  • dLOR[j] – Loss of Recovery, Logical Lane j
  • dLOL – Loss of Lane Alignment
  • Excessive Skew (OTL3.4 and OTL4.4 Applications)
  • dLOF – Loss of Frame
  • dLOM – Loss of Multi-Frame
  • dAIS – (OTUk-) Alarm Indication Signal
  • dTIM – Trail Trace Identifier Mismatch
  • dBDI – Backward Defect Indicator
  • dDEG – Signal Degrade
  • dIAE – Input Alignment Error
  • dBIAE – Backward Input Alignment Error
ODU Layer
  • dAIS – (ODUk) Alarm Indication Signal
  • dLCK – Locked Status
  • dOCI – Open Connection Indication
  • dTIM – Trail Trace Identifier Mismatch
  • dBDI – Backward Defect Indicator
  • dDEG – Signal Degrade
Non-Multiplexed Applications
  • dLCS – Loss of Character Synchronization (100GBASE-R)
  • dPLM – Payload Type Mismatch
Multiplexed Applications
  • dLOOMFI – Loss of OMFI Synchronization
  • dLOFLOM[p] – Loss of Frame, Loss of Multi-Frame – ODUj Tributary Port p
  • dMSIM[p] – Multiplex Structure Identifier Mismatch – ODUj Tributary Port p
Tandem Connection Monitoring (TCM)
  • TCMi-dAIS – TCM Level i, Alarm Indication Signal
  • TCMi-dLCK – TCM Level i, Locked Status
  • TCMi-dOCI – TCM Level i, Open Connection Indication
  • TCMi-dTIM – TCM Level i, Trail Trace Identifier Mismatch
  • TCMi-dBDI – TCM Level i, Backward Defect Indicator
  • TCMi-dDEG – TCM Level i, Signal Degrade
  • TCMi-dIAE – TCM Level i, Input Alignment Error
  • TCMi-dBIAE – TCM Level i, Backward Input Alignment Error
  • dLTC – Loss of Tandem Connection Monitoring

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