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Work item:
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G.8271.1/Y.1366.1 (2022) Amd.1
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Subject/title:
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Network limits for time synchronization in packet networks with full timing support from the network - Amendment 1
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Status:
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Approved on 2023-06-13
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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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-
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Equivalent number:
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-
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Timing:
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-
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Liaison:
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3GPP, IEEE802.1, IEEE1588, IEEE802.3, O-RAN
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Supporting members:
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Ericsson, Calnex, DT, Microchip, Orange, Nokia, Huawei
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Summary:
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Recommendation ITU-T G.8271.1/Y.1366.1 specifies the maximum network limits of phase and time error that shall not be exceeded. It specifies the minimum equipment tolerance to phase and time error that shall be provided at the boundary of packet networks at phase and time synchronization interfaces. It also outlines the minimum requirements for the synchronization function of network elements.
This Recommendation addresses the case of time and phase distribution across a network by a packet-based method with full timing support to the protocol level from the network.
Amendment 1 to Recommendation G.8271.1 provides the following updates:
Clarifications and improvements in clause XI, Measurement of maximum relative time error limits.
Editorial changes replacing the term calibration with compensation that better reflect what is meant throughout this document.
Enhanced network limits at reference point C have been added as clause 7.3.3, then for clarity old clause 7.3 text is moved into new clause 7.3.1 and old clause 7.5 is moved to new clause 7.3.2.
Change non-inclusive language in line with IEEE1588g
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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:
2022-11-30 15:43:43
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Last update:
2023-06-28 16:20:25
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