Real aging is not desirable for Deterministic Network (DetNet) flows. Defined herein are new techniques that provide a similar service for DetNet flows. The new techniques involve: utilizing new Quality of Service (QoS) values to indicate a packet that is a normal DetNet packet versus a reclassified packet; reclassifying a DetNet packet to a higher priority to avoid discarding N contiguous packets of the flow; ensuring that a reclassified packet progresses through automatic repeat request (ARQ) methods; and declassifying a DetNet packet to a lower priority rather than discarding it using IP-in-IP encapsulation and a deadline header with a deadline that is computed on the fly based on the remaining time till the bounded time of delivery for the packet.

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