IEEE/ICACT20260346 Slide.13        [Big Slide]       [YouTube] Oral Presentation
This abstraction makes the locality intuition very clear: the failure primarily impacts the downstream branch that depended on it in the shortest path tree, not the entire network. Other areas may still be adjacent to the failed node, but they do not depend on it to reach the destination, so they do not need to participate in repair. By focusing only on Ku, UW-LFRR avoids unnecessary computation and prevents routing state from spreading beyond the truly affected region.

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