Detail of YD/T 1992-2009

Introduction of YD/T 1992-2009

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:

Contents of YD/T 1992-2009

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