OTN – Lesson 12 – APS Features within Atomic Functions – Part 2

This blog post presents a video that discusses the APS features within some fo the Atomic Functions that we discussed in Lesson 11.

Lesson 12 – Video 13 – Detailed Implementation of APS within the Atomic Functions – Video 2

This blog post continues our discussion of the APS features within various Atomic Functions. In this case, we will present how to implement Automatic Protection Switching in great detail. In particular, we will describe the following:

  • APS Features within the ODUT/ODU_A_So and ODUT/ODU_A_Sk functions (ODUT/TCM Layer – SNC/S Monitoring)
    • How do we implement the APS features within these Atomic Functions to support TCM Layer i SNC/S Monitoring and Protection-Switching?
    • How do we implement a complete System-Level design (using these atomic functions along with the ODUT_TT_So and ODUT_TT_Sk Atomic Functions)?
      • NOTE: We discussed these atomic functions in Lesson 11. However, we did not discuss the APS features (within those functions) then.

More specifically, we discuss how our system should implement APS and the APS Communication Protocol whenever the upstream ODUT_TT_Sk Atomic Function declares either a Service-Affecting or the TCMi-dDEG defect.

Check Out the Video Below

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OTN – Lesson 11 – Tandem Connection Monitoring Multi-Administration Domain Walk-Thru – Part TWO

This post serves as Part TWO (and the Final Part) for the Multi-Administrative Domain Walk Through and Analysis for our study of Tandem Connection Monitoring.

Lesson 11 – Video 9 – TCM Multi-Administration Domain Walk Through – Part TWO

This blog post contains a video that covers the second (and final) part of the Multi-Administrative Domain Walk-Through.

In particular, this video covers the following topics:

  • Part TWO of our Multi-Administration Domain Walk-Through (using our knowledge of TCM-related atomic functions to analyze this network).

In particular, this post covers the following parts of the Multi-Administration Domain Walk-Through.

  • Initializing the Serving Operating Domain (Operator B) – TCM Level 3
  • Terminating the Serving Operating Domain (Operator B) – TCM Level 3
  • Initalizing the Serving Operating Domain (Operator C) – TCM Level 3
  • Initializing the Protect Domain – TCM Level 4
  • Terminating the Protect Domain – TCM Level 4
  • Terminating the Serving Operating Domain (Operator C) – TCM Level 3
  • Terminating the Leased Service Serving Operator Domain – TCM Level 2
  • Terminating the Service Requesting Domain – TCM Level 1

This video serves as Part TWO (and the Final Part) of our Multi-Administration Domain Walk-Through and Analysis.

Check Out the Video Below.

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OTN – Lesson 11 – Tandem Connection Monitoring Controller and Multi-Administration Domain Walk-Thru – Part ONE

This blog post briefly introduces the Tandem Connection Monitoring Controller Atomic Function. This post also serves as Part ONE for the Multi-Administrative Domain Walk Through and Analysis.

Lesson 11 – Video 8 – TCM Controller and Multi-Administration Domain Walk-Through – Part ONE

This blog post contains a video that covers the first part of the Multi-Administrative Domain Walk-Through.

In particular, this video covers the following topics:

  • An Introduction to the TCM (Tandem Connection Monitoring) Controller Atomic Function
  • An Overview of What We Have Covered thus far – In Lesson 11, and Where We’re Going
  • Introduction to Compound (Atomic Functions)
    • Definition/Introduction to the Source Compound Function
    • Definition/Introduction to the Sink Compound Function
  • Part ONE of our Multi-Administration Domain Walk-Through (using our knowledge of TCM-related atomic functions to analyze this network).

In particular, this post covers the following parts of the Multi-Administration Domain Walk-Through.

  • Initializing the Service Requesting Domain – TCM Level 1
  • How We Initialize the Leased Service Serving Operator Domain – TCM Level 2
  • Initializing the Serving Operating Domain (Operator A) – TCM Level 3
  • Terminating the Serving Operating Domain (Operator A) – TCM Level 3

This video serves as Part ONE of our Multi-Administration Domain Walk-Through and Analysis.

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OTN – Lesson 11 – Tandem Connection Monitoring – Sink Atomic Functions – Video 5

This blog post includes a video that discusses both the ODUTm_TT_Sk (Non-Intrusive Monitoring) Function and the ODUT/ODU_A_Sk Atomic Function. This is the last blog post to describe and define the TCM-related Atomic Functions.

Lesson 11 – Video 7 – Tandem Connection Monitoring – ODUTm_TT_Sk and ODUT/ODU_A_Sk Atomic Functions

This blog post contains a video that covers the fifth part of the Sink Direction Tandem Connection Monitoring (TCM) related Atomic Functions.

In particular, this video covers the following two atomic functions:

  • ODUTm_TT_Sk (Atomic Function for Non-Intrusive Monitoring – TCM Applications), and
  • ODUT/ODU_A_Sk

More specifically, this video covers the following aspects of each of these Atomic Functions.

  • ODUTm_TT_Sk Atomic Function
    • Applications in which we would use the ODUTm_TT_Sk Atomic Function (e.g., Non-Intrusive Monitoring for TCM Subnetworks)
    • A brief overview of this function’s capabilities and attributes
    • How this function differs from the ODUT_TT_Sk Atomic Function.
      • When the ODUT_TT_Sk Function is operating in the OPERATIONAL Mode
      • If the ODUT_TT_Sk Function is operating in the MONITOR Mode, and
      • When the ODUT_TT_Sk Function is operating in the TRANSPARENT Mode
  • ODUT/ODU_A_Sk Atomic Function
    • Where this function fits into the Tandem Connection Monitoring Network
    • The Architecture/Functionality of the ODUT/ODU_A_Sk Function
      • Operation in the various TCM Modes (e.g., OPERATIONAL and MONITOR/TRANSPARENT).
      • The Protection Port (for Automatic Protection Switching support).
      • The Removal Block – How this function terminates the “Selected TCMOH and APS/PCC field”.
      • Replacing the Normal ODU signal (carrying client data) with either the ODU-AIS or ODU-LCK Maintenance Signals.
      • Asserting CI_SSF and CI_SSD in response to upstream defect conditions.

This video completes our discussion/review of the TCM-related Atomic Functions.

Check Out the Video Below.

Continue reading “OTN – Lesson 11 – Tandem Connection Monitoring – Sink Atomic Functions – Video 5”