OTN – Lesson 12 – Conclusion of Discussion of APS Commands for Protection Switching – Part IV

This blog post presents a video that concludes our discussion of APS Commands via the APS/PCC Communications Protocol

Lesson 12 – Video 11 – Detailed Discussion of APS Commands – Video 4

This blog post completes our discussion of APS Commands and the APS/PCC Communications Protocol. This video serves as Video 4 in this discussion. This blog post briefly discusses the SD, Manual Switch, Wait-to-Restore (WTR), Reverse-Request (RR), and Do-Not-Revert (DNR) APS Commands.

Additionally, this video defines and discusses the 1 Phase APS Communication, 2 Phase APS Communication and 3 Phase APS Communication Procedures.

Finally, this video will define APS Recovery Time. This video will also present the ITU-T G.873.1 APS Recovery Time Requirements.

More specifically, this video will cover the following topics:

Detailed Topics Discussed

  • APS Commands (Continued)
    • SD_W (Signal Degrade in the Working Transport Entity)
    • SD_P (Signal Degrade in the Protection Transport Entity)
    • WTR (Wait-to-Restore)
    • RR (Reverse Request)
    • DNR (Do Not Revert)
  • 1 Phase APS Communication
    • Advantages of 1 Phase
    • Disadvantages of 1 Phase
  • 2 Phase APS Communication
    • Advantages of 2 Phase
    • Disadvantages of 2 Phase
  • 3 Phase APS Communication
    • Advantages of 3 Phase
    • Disadvantages of 3 Phase
  • Definition of APS Recovery Time

Check Out the Video Below

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