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Nested and Overlapping Protection

Nested and Overlapping Protection. M Vinod Kumar Dr. Abhay Karandikar. Nested and Overlapping Protection. Single TESI ( Qay ). With Segment Protection. With Global Protection (GP, Qay ). With Segment Protection. Nested Segments. Overlapping Segments. Certain TESI is outside

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Nested and Overlapping Protection

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  1. Nested and Overlapping Protection M Vinod Kumar Dr. Abhay Karandikar

  2. Nested and Overlapping Protection Single TESI (Qay) With Segment Protection With Global Protection (GP, Qay) With Segment Protection Nested Segments Overlapping Segments Certain TESI is outside the scope of ISP; Only GP for them Fixed Timer Fixed Timer Feedback Feedback Fate-sharing Fate-sharing

  3. Nested or Overlapping Segments 6 Outer-Protect_1 inner-Protect 1 2 3 5 4 Outer-work Inner-work Outer-Protect_2 Forcing Fate-share 7 Inner-work fails => Outer-work fails Inner-Protect fails => Outer-Protect_1 fails There is consistent protection switching if fate is shared

  4. Nested or Overlapping Segments 6 Outer-Protect_1 Inner-work_2 inner-Protect_1 1 2 3 5 4 Outer-work Inner-work_1 inner-Protect_2 Outer-Protect_2 7 Outer-Protect_3

  5. Questions?

  6. Thank You

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