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Work item:
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Y.3148 (ex Y.det-FQ-fa)
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Subject/title:
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Functional architecture for stateless fair queuing in large scale networks including IMT-2020 and beyond
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Status:
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Consented on 2025-07-25 [Issued from previous study period]
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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2025-07 (High priority)
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Liaison:
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ITU-T SG12, IEEE 802.1 TSN TG, IETF DetNet WG
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Supporting members:
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Korea (Republic of), KT Corp., ETRI, China Unicom
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Summary:
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This Recommendation specifies the functional architecture, functional entities, operational procedures, and packet metadata to fulfill the requirements and framework specified in [ITU-T Y.3129]. It enables deterministic networking with a set of work conserving packet schedulers in the data plane, which guarantees end-to-end (E2E) latency bounds to flows.
In particular, the procedures for metadata usage, metadata creation and update, priority queue management, and time difference compensation are specified. The use of FIFO instead of priority queue, as the approximated implementations of the stateless fair queuing, is specified as well.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2024-08-08 10:05:23
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Last update:
2025-07-28 18:21:52
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