标准编号:	YD/T 1992-2009
中文名称:	基于同步数字体系（SDH）的多业务传送节点（MSTP）测试方法互联互通部分
英文名称:	Test specifications for SDH-based multi-service transport platform (MSTP) － Interoperability
中标分类:	M19    通信网设备互通技术要求和通信网借口
行业分类:	YD    通信行业标准
ICS分类:	33.040.20 33.040.20    传输系统 33.040.20
发布机构:	工业和信息化部
发布日期:	2009-12-11
实施日期:	2010-1-1
标准状态:	valid
翻译语言:	英文
文件格式:	PDF
中文字符数:	22000 字
翻译价格(元):	1320.0
交付时间:	付款后 1 个工作日

est specifications for SDH-based multi-service transport platform (MSTP) - Interoperability 1 Scope This standard specifies the test specifications for interoperability of synchronous digital hierarchy (SDH)-based multi-service transport platform (MSTP) equipment, mainly including SDH optical interface interoperability test, generic framing procedure (CFP) interoperability test, virtual concatenation and link capacity adjustment scheme (LCAS) interoperability test, multiprotocol label switching (MPLS) interoperability test and Ethernet service interoperability test, etc. This standard is applicable to the interoperability test for SDH-based MSTP equipment provided by different manufacturers. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies. GB/T 15941-2008 Requirements for synchronous digital hierarchy (SDH) optical fiber cable line systems YD/T 1443-2006 Technical requirements of generic framing procedure (GFP) YD/T 1474-2006 Technical requirements of multi-service transport platform (MSTP) based on SDH - Embedded with MPLS function YD/T 1631-2007 Technical requirements for synchronous digital hierarchy (SDH) virtual concatenation and link capacity adjustment scheme YD/T 1961-2009 Technical requirements for SDH-based multi-service transport platform (MSTP) - Interoperability ITU-T G.8011.2 Ethernet virtual private line service 3 Abbreviations For the purposes of this standard, the following abbreviations apply. CRC Cyclic Redundancy Check CoS Class of Service CSF Client Signal Failure FCS Frame Check Sequence GFP Generic Framing Procedure LCAS Link Capacity Adjustment Scheme LFD Loss of Frame Delineation LSP Label Switching Path MAC Media Access Control MPLS Multiprotocol Label Switching MSTP Multi-Service Transport Platform NNI Network to Network Interface OSPF Open Shortest Path First PE Provider Equipment PFI Payload FCS Identifier PLI Payload Length Indicator PLM Payload Mismatch PSN Packet Switch Network PW Pseudo-Wire QoS Quality of Service SDH Synchronous Digital Hierarchy S-VLAN service vlan TIM Trace Identifier Mismatch UNI User-Network Interface VC Virtual Container VLAN Virtual Local Area Network 4 Basic test configuration and test content 4.1 Basic test configuration The basic configuration of equipment provided by manufacturer for SDH-based MSTP interoperability test shall meet those specified in Table 1. Table 1 Basic configuration provided by manufacturer for interoperability test Manufacturer A Manufacturer B Equipment type STM-1/4/16/64 STM-1/4/16/64 Equipment quantity More than 2 ports More than 2 ports Service board card under test Ethernet board card and STM-N service interface card Ethernet board card and STM-N service interface card See Figure 1 for an example of test networking. Figure 1 Schematic diagram for MSTP interoperability test networking 4.2 Test contents YD/T 1961-2009 specifies the interoperability model shown in Figure 2 and this standard specifies the corresponding test specifications for the interoperability contents involved in this interoperability model, as follows:

Foreword i 1 Scope 2 Normative references 3 Abbreviations 4 Basic test configuration and test content 4.1 Basic test configuration 4.2 Test contents 5 SDH optical interface interoperability test 5.1 Interface interoperability 5.2 Interoperability of low order time slot numbers 5.3 Overhead interoperability 6 GFP encapsulation interoperability test 7 Virtual concatenation and LCAS interoperability test 7.1 Virtual concatenation interoperability test 7.2 LCAS function interoperability test 8 MPLS interoperability test 8.1 Static assignment interoperability 8.2 Dynamic signalling interoperability (optional) 9 Ethernet service interoperability test 9.1 Point-to-point Ethernet private line service interoperability test 9.2 Point-to-multipoint Ethernet private line service interoperability test 9.3 QoS interoperability test 9.4 Long-term Ethernet service interoperability test

1 范围 本标准规定了基于同步数字体系(SDH)的多业务传送节点(MSTP)设备的互联互通测试方法，主要包括：SDH光接口互通测试、通用成帧规程(CFP)互通测试、虚级联和链路容量调整方案(LCAS)互通测试、多协议标记交换(MPLS)互通测试和以太网业务互通测试等。 本标准适用于不同厂家基于SDH的MSTP设备之间的互通测试。 2 规范性引用文件 下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准。然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。 GB／T 15941-2008 同步数字体系(SDH)光缆线路系统进网要求 YD／T 1443-2006 通用成帧规程(GFP)技术要求 YD／T 1474-2006 基于SDH的多业务传送节点技术要求——内嵌MPLS功能部分 YD／T 1631-2007 同步数字体系(SDH)虚级联及链路容量调整方案技术要求 YD／T 1961-2009 基于同步数字体系(SDH)的多业务传送节点(MSTP)技术要求——互联互通部分 ITU-T G.8011.2 以太网虚拟专线业务 3 缩略语 下列缩略语适用于本标准。 CRC Cyclic Redundancy Check 循环冗余校验 CoS Class of Service 业务分类 CSF Client Signal Failure 客户信令失效 FCS Frame Check Sequence 帧校验序列 GFP Generic Framing Procedure 通用成帧规程 LCAS Link Capacity Adjustment Scheme 链路容量调整方案 LFD LOss of Frame Delineation 帧定界丢失 LSP Label Switching Path 标记交换路径 MAC Media Access Control 介质访问控制 MPLS Multiprotocol Label Switching 多协议标记交换 MSTP Multi-Service Transport Platform 多业务传送节点 NNI Network to Network Interface 网络到网络接口 OSPF Open Shortest Path First 开放最短路径优先 PE Provider Equipment 运营商边缘设备 PFI Payload FCS Identifier 净荷FCS标识符 PLI Payload Length Indicator 净荷长度指示 PLM Payload Mismatch 净荷失配 PSN Packet Switch Network 分组交换网络 PW Pseudo-Wire 伪线 QoS Quality of Service 服务质量 SDH Synchronous Digital Hierarchy 同步数字体系 S-VLAN service vlan 业务VLAN TM Trace Identifier Mismatch 踪迹标识失配 UNI User-Network Interface 用户网络接口 VC Virtual Container 虚容器 VLAN Virtual Local Area Network 虚拟局城网 4 测试基本配置及测试内容 4.1 测试基本配置 基于SDH的MSTP互联互通测试的厂家设备基本配置应满足表1的要求。 表1 互联互通测试厂家基本配置 厂家A 厂家B 设备类型 STM-1／4／16／64 STM-1／4／16／64 设备数量 2端以上 2端以上 被测业务板卡 以太网板卡 STM-N业务接口卡 以太网板卡 STM-N业务接口卡 测试组网示例如图1所示。 分析仪 厂家 或 数据网络性能分析仪 图1 MSTP互联互通测试组网示意 4.2 测试内容 YD／T 1961-2009规定了如图2所示的互通模型，本标准对该互通模型涉及的互通内容规定了相应的测试方法，内容如下： 1) SDH光接口互通测试； 2) VC虚级联／LCAS互通测试； 3) GFP封装互通测试； 4) MPLS互通测试； 5) 以太网业务互通测试。 具体测试方法见本标准第5~9章。 图2 MSTP互通模型 5 SDH光接口互通测试 5.1 接口互通 测试项目 SDH接口互通 测试目的 验证两个厂家的MSTP设备SDH接口的互通性 测试依据 YD／T 1961-2009 测试仪表 SDH分析仪 测试配置 测试配置如图3所示 厂家 分析仪 图3 SDH接口互通测试配置 测试步骤 1) 如图3所示，连接仪表和被测设备； 2) 在NE1和NE2之间配置1条交叉颗粒为VC-12的SDH业务，业务能正常收发，无告警和误码； 3) 连续测试15min以上，验证互通的稳定性； 4) 改变交叉颗粒为VC-3，重复步骤2)和3)； 5) 改变交叉颗粒为VC-4，重复步骤2)和3) 注意事项 ／ 5.2 低阶时隙编号互通 测试项目 低阶时隙编号互通 测试目的 验证两个厂家的MSTP设备时隙编号的互通性 测试依据 YD／T 1961-2009 测试仪表 SDH分析仪 测试配置 测试配置如图4所示 厂家 分析仪 图4 低阶时隙编号互通测试配置 测试步骤 1) 如图4所示，连接仪表和被测设备； 2) 在NE1和NE2之间配置1条交叉颗粒为VC-12的SDH业务； 3) NE1和NE2均配置支路口编号为1的VC-12时隙，业务应正常连通，无告警和误码； 4) NE1和NE2均配置支路口编号为2的VC-12时隙，查看业务是否连通；如果正常连通，则证明两家设备的VC-12时隙编号一致； 5) 如果业务无法连通，把NE1或NE2的配置的支路编号修改为22，业务应可连通，并无告警和误码； 6) 根据上述测试的结果，验证剩余时隙编号的互通性