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Virual Oral Question and Answer
IEEE/ICACT20260302 Question.5
Questioner: xueyy@dsp.ac.cn    2026-02-09 오전 12:46:27 		IEEE/ICACT20260302 Answer.5
Answer by Auhor zhaoyb@dsp.ac.cn   2026-02-09 오전 12:46:27
What is the role of the “backpressure signal” in ISMCC, and how is it propagated between network nodes? Thank you for your question. The Backpressure Signal acts as a "last resort" safety mechanism to prevent buffer overflows when local resources (cache and multipath capacity) are exhausted.The signal propagates hop-by-hop from the point of congestion back to the source.Once the congestion clears in the congested node, it sends a "Disable Backpressure" signal the its upstream node.

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