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[802SEC] IEEE P802.3cx draft PAR and CSD response - Improving PTP Timestamping Accuracy

Dear EC members,

In support of subclause 9.2 'IEEE 802 LMSC Approval' of the LMSC Operations Manual please find below the required information in respect to the IEEE P802.3cx Standard for Ethernet Amendment: Media Access Control (MAC) service interface and management parameters to support improved Precision Time Protocol (PTP) timestamping accuracy PAR for consideration at the November 2019 plenary.

Best regards,

[1] Draft PAR and CSD responses:

Draft PAR: <>
CSD responses: <>

[2] Explanatory technical background material:

Ethernet can be applied in important new applications if implementations can interwork to meet more stringent time synchronization. Potential new applications include use in the 5G radio access network (RAN) infrastructure, high-speed telecommunications, industrial control and SmartGrid. For example, there is a strong desire to be able to use Ethernet for 5G RAN, which is expected to have significant volume.

[3] Status of the development of the PAR:

The draft PAR and CSD responses are pending IEEE 802.3 Working Group approval at the November 2019 plenary.

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