ITU-T G.8271-2017
电信网络的时间和相位同步问题（第 15 研究组）

Time and phase synchronization aspects of telecommunication networks (Study Group 15)

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标准号

ITU-T G.8271-2017

发布

2017年

发布单位

ITU-T - International Telecommunication Union/ITU Telcommunication Sector

 

 

适用范围

This Recommendation defines time and phase synchronization aspects in telecommunication networks. It specifies the suitable methods to distribute the reference timing signals that can be used to recover the phase synchronization and/or time synchronization according to the required quality. It also specifies the relevant time and phase synchronization interfaces and related performance. The telecommunication networks that are in the scope of this Recommendation are currently limited to the following scenarios: ? Ethernet ([IEEE 802.3] and [IEEE 802.1Q]). ? MPLS ([IETF RFC 3031] and [ITU-T G.8110]). ? IP ([IETF RFC 791] and [RFC 2460]). ? OTN ([ITU-T G.709]). The physical layers that are relevant to this specification are the Ethernet media types@ as defined in [IEEE 802.3] and@ for OTN@ the Optical OCh layer with OTU frame as defined in [ITU-T G.709].

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