OTN – Lesson 12 – Detailed Discussion of SNC/N Monitoring (Protection Switching)

This blog post presents a video that describes (in detail) SNC/N (Subnetwork Protection – Non-Intrusive) Monitoring for Protection Switching.

Lesson 12 – Video 6 – Detailed Discussion of SNC/N (Subnetwork Circuit – Non-Intrusive) Monitoring for Protection Switching

This blog post contains a video that presents a detailed discussion of SNC/N (Subnetwork Circuit – Non-Intrusive Monitoring, for Protection-Switching purposes, at the ODU Layer.

In particular, this video will discuss the following topics:

  • A Detailed Review of SNC/Ne (Subnetwork Circuit Protection/Non-Intrusive End-to-End) Monitoring, and
  • A Detailed Review of SNC/Ns (Subnetwork Circuit Protection/Non-Intrusive Sublayer) Monitoring.
  • This video shows example locations/conditions of where we would use SNC/Ne or SNC/Ns Monitoring and why we would use this form of monitoring.
  • This video also highlights the similarities and differences between SNC/Ne and SNC/Ns Monitoring.

Check Out the Video Below

Continue reading “OTN – Lesson 12 – Detailed Discussion of SNC/N Monitoring (Protection Switching)”

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

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 running in the MONITOR Mode, and
      • When the ODUT_TT_Sk Function is working 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”