ITU-T G.8012.1-2012
以太网传输网接口.15号研究组

Interfaces for the Ethernet transport network (Study Group 15)

ITU-T G.8012.1-2012 发布历史

This Recommendation defines the interfaces of the Ethernet transport network to be used within and between subnetworks of the Ethernet network, in terms of Ethernet transport hierarchy, formats for mapping and multiplexing client signals into Ethernet connections and formats for multiplexing Ethernet connection signals into Ethernet or non-Ethernet connection signals. These interfaces support the transport of Ethernet services, so-called Ethernet virtual connection (EVC) services, as defined in [ITU-T G.8011]. The Ethernet connections support e-Line, E-Tree and E-LAN Ethernet services as defined in [ITU-T G.8011]. This Recommendation specifies the interworking aspects between EVC service signals on an Ethernet user-to-network interface (UNI) and Ethernet connection signals on an Ethernet network-to-network interface (NNI). This Recommendation does not specify the Ethernet component and/or equipment models to meet the Ethernet NNI. Those components and models are defined in [ITU-T G.8021] and [ITU-T G.8021.1]. The interfaces defined in this Recommendation can be applied at NNIs and UNIs of the Ethernet transport network. The Ethernet UNI is formed by an Ethernet interface and the Ethernet NNI by an Ethernet interface or an Ethernet over Transport interface. The Ethernet over Transport NNI uses various server layer networks like optical transport hierarchy (OTH) and SDH. [ITU-T G.8012] describes the mapping of ETH_CI into those server layers mainly for Ethernet private line applications. This Recommendation describes the mapping of S-EC, B-EC, BS-EC, L-EC and ESP signals into those server layers for an Ethernet transport network application which deploys a mix of ETY and OTH server layers. It is recognized, for Ethernet over Transport interfaces used within Ethernet subnetworks, that aspects of the interface are transport technology dependent. The transport technology dependent aspects are defined in the transport technology specific Recommendations, e.g., [ITU-T G.709] and [ITU-T G.707]. The operations, administration and maintenance (OAM) functionality necessary for operations and management of Ethernet subnetworks is described in [ITU-T G.8013]. The detailed requirements are specified in a number of ITU-T Recommendations, IEEE Standards and MEF Technical Specifications, which are referred to. This Recommendation provides a description of the applicability of Ethernet OAM to the different types of Ethernet connections. Note that [ITU-T G.8012] was developed prior to [ITU-T G.8013] and did not discuss Ethernet OAM.

ITU-T G.8012.1-2012由国际电信联盟 IX-ITU 发布于 2012。

ITU-T G.8012.1-2012 在中国标准分类中归属于: M14 通信网传输系统接口。

ITU-T G.8012.1-2012 发布之时，引用了标准

• ITU-T G.707-2007 同步数字系列网络节点干扰
• ITU-T Y.1322-2007 (预发布)同步数字系列(SDH)的网络结点接口
• ITU-T G.709-2012 光传送网接口.15号研究组
• ITU-T G.800-2012 传输网络的统一功能架构.15号研究组
• ITU-T G.841-1998 同步数字系列(SDH)网保护结构的类型与特性
• ITU-T G.842-1997 SDH网络保护结构的互通
• ITU-T G.873.1-2011 光传输网络(OTN):线性保护.15号研究组
• ITU-T G.873.2-2012 光通道数据单元(ODUK)共享环网保护.15号研究组
• ITU-T G.7041-2011 通用成帧规程.15号研究组
• ITU-T Y.1303-2011 通用成帧规程.15号研究组
• ITU-T G.8032-2012 以太网环保护转换.15号研究组
• ITU-T G.8262-2010 同步以太网设备子钟的定时特性.15号研究组

ITU-T G.8012.1-2012的历代版本如下：

• 2012年 ITU-T G.8012.1-2012 以太网传输网接口.15号研究组

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标准号

ITU-T G.8012.1-2012

发布日期

2012年

实施日期

废止日期

无

中国标准分类号

M14

发布单位

IX-ITU

引用标准

ITU-T G.707-2007 ITU-T Y.1322-2007 ITU-T G.709-2012 ITU-T Y.1331-2012 ITU-T G.800-2012 ITU-T G.841-1998 ITU-T G.842-1997 ITU-T G.873.1-2011 ITU-T G.873.2-2012 ITU-T G.7041-2011 ITU-T Y.1303-2011 ITU-T G.8032-2012 ITU-T Y.1344-2012 ITU-T G.8262-2010 ITU-T

适用范围

This Recommendation defines the interfaces of the Ethernet transport network to be used within and between subnetworks of the Ethernet network, in terms of Ethernet transport hierarchy, formats for mapping and multiplexing client signals into Ethernet connections and formats for multiplexing Ethernet connection signals into Ethernet or non-Ethernet connection signals. These interfaces support the transport of Ethernet services, so-called Ethernet virtual connection (EVC) services, as defined in [ITU-T G.8011]. The Ethernet connections support e-Line, E-Tree and E-LAN Ethernet services as defined in [ITU-T G.8011]. This Recommendation specifies the interworking aspects between EVC service signals on an Ethernet user-to-network interface (UNI) and Ethernet connection signals on an Ethernet network-to-network interface (NNI). This Recommendation does not specify the Ethernet component and/or equipment models to meet the Ethernet NNI. Those components and models are defined in [ITU-T G.8021] and [ITU-T G.8021.1]. The interfaces defined in this Recommendation can be applied at NNIs and UNIs of the Ethernet transport network. The Ethernet UNI is formed by an Ethernet interface and the Ethernet NNI by an Ethernet interface or an Ethernet over Transport interface. The Ethernet over Transport NNI uses various server layer networks like optical transport hierarchy (OTH) and SDH. [ITU-T G.8012] describes the mapping of ETH_CI into those server layers mainly for Ethernet private line applications. This Recommendation describes the mapping of S-EC, B-EC, BS-EC, L-EC and ESP signals into those server layers for an Ethernet transport network application which deploys a mix of ETY and OTH server layers. It is recognized, for Ethernet over Transport interfaces used within Ethernet subnetworks, that aspects of the interface are transport technology dependent. The transport technology dependent aspects are defined in the transport technology specific Recommendations, e.g., [ITU-T G.709] and [ITU-T G.707]. The operations, administration and maintenance (OAM) functionality necessary for operations and management of Ethernet subnetworks is described in [ITU-T G.8013]. The detailed requirements are specified in a number of ITU-T Recommendations, IEEE Standards and MEF Technical Specifications, which are referred to. This Recommendation provides a description of the applicability of Ethernet OAM to the different types of Ethernet connections. Note that [ITU-T G.8012] was developed prior to [ITU-T G.8013] and did not discuss Ethernet OAM.

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