Generic Requirements for Operations of ATM NEs

Transcription

1 GR 1248 CORE Issue 4, November 1998 Contents Contents Contents Preface...Preface-1 1. Introduction Purpose of Document Major Changes From Issue 3 of GR-1248-CORE Scope of Document Organization of Document Related Bellcore and Standards Documents Requirements Terminology Requirement Labeling Conventions Numbering of Requirement and Related Objects Requirement, Conditional Requirement, and Objective Object Identification Broadband Network, Services, and Operations Model Overview Asynchronous Transfer Mode (ATM) Reserved VCIs ATM Adaptation Layer (AAL) ATM Networks - Soft PVC Capability Soft PVC - An Overview Soft PVCs and Network Management Broadband Services and Service Support Service Access Scenarios Service Offerings Operations Architecture Model Physical Systems, Logical Layers, and Relationship of Applicable Bellcore Documents Operations Interface and User/System Interface Requirements Operations Interface for Interactive Applications Application Layer Requirements Protocol Profiles for OSI Stacks Protocol Profiles for TCP/IP Operations Interface for File-Oriented Applications User/System Interface Physical Layer and ATM Layer Operations Flows Physical Layer Operations Flows DS1 Level Operations Flows DS3 Level Operations Flows v

2 GR 1248 CORE Contents Issue 4, November PLCP Level Operations Flows SONET Level Operations Flows ATM Layer Operations Flows OAM Cells - Basic Background and Structure Segment and End-to-End OAM Flows Conditions When OAM Flows Are Active on PVCs and SVCs OAM Cell Count: Distinguishing User Cells and Non-User Cells Bandwidth Needs for OAM Cells OAM Flows for Multipoint Connections Operations Support for VCIs 3 and Configuration Management Requirements External Update Support ATM NE Configuration Identification and Change Reporting Memory Update Support Configuration of UNIs, B-ICIs, B-INNIs, and Vb Interfaces Configuration of Virtual UNIs Configuration of VPLs and VCLs Configuration of VPC and VCC End Points Configuration of Point-to-Point and Multipoint ATM VP and VC Cross Connections Configuration of VPC and VCC OAM Segment End Points Configuration of AAL Connections Activating and Deactivating ATM NE Functions Suppression and Duplication of Autonomous Messages: Event Forwarding Discriminator Function Database Query Support Database Backup and Restoration Software DownLoad Support Local Downloading of Software Generics Remote Downloading of Software Generics Fault Management Requirements Alarm Surveillance Physical Layer Defect and Failure Detection, and In-Band Maintenance Signals ATM Layer Defect and Failure Detection, and In-Band Defect Indication Signals Failure Timing and Failure Notification Fault Localization and Testing Internal Diagnostics VPC/VCC Testing Capabilities Loopback and Continuity Check ATM Layer Protection Switching (PS) vi

3 GR 1248 CORE Issue 4, November 1998 Contents 7. Performance Management Requirements Performance Monitoring Requirements Monitoring of Physical Transport Facilities Protocol Monitoring VP/VC Performance Monitoring Protocol Test Access Network Traffic Management Requirements Congestable ATM Modules Measures of Congestion NTM Surveillance Measurements and Notifications NTM Controls Activation and Deactivation Procedures Activation/Deactivation - General Background PM/CC Cell Flows Performance Monitoring and Continuity Check OAM Activation/Deactivation Cell Procedure Activation/Deactivation Cell Payload Structure Activation Procedure - OAM Cell Approach Deactivation Procedure - OAM Cell Approach Activation/Deactivation - The TMN Approach Activation/Deactivation Procedures - TMN Approach Requirements for Activation/Deactivation Procedure - TMN Approach Network Data Collection (NDC) Requirements Introduction NDC Scheduled Measurements Traffic Load Measurements for Interfaces and VPL/VCLs UPC/NPC Disagreement Measurements Traffic Load and Congestion Measurements for ATM NE Modules Summary of NDC Scheduled Measurements Applications of NDC Scheduled Measurements Special Studies Measurements Analysis of Traffic Characteristics Analysis of OAM Traffic Data Collection and Reporting Requirements Data Collection Specifications Reporting Schedules Miscellaneous ATM NE Reports ATM NE Maintenance Reports ATM NE Engineering Reports Common Requirements for Performance Monitoring, NTM, and NDC Counters and Monitoring Intervals vii

4 GR 1248 CORE Contents Issue 4, November Thresholds Reports Scaling of ATM NE Operations Processes Resource Sharing Resource Sharing (RS) Scaling RS Scaling Requirements - PM Monitoring and Loopback Processes Security Management Requirements Security Requirements for Non-Public Access Identification Authentication System Access Control Resource Access Control Security Log (Audit) Data and System Integrity Security Administration Security Requirements for Dial-In Access Authentication System Access Control Resource Access Control Accounting Management (Usage Information for Billing) Fault Related Requirements Configuration Related Requirements for ATM PVCs Memory Update Support Memory Backup and Restoration Support Configuration Related Requirements for ATM SVCs Memory Update Support Memory Backup and Restoration Support User-Network Management Requirements Exchange PVC CRS CNM Requirements ILMI Requirements ILMI - General Requirements ILMI - Address Registration ILMI - Miscellaneous Notes Management of Signaling Channels: ATM and SAAL Requirements Signaling Overview Operations Support for ATM and Physical Layers of Signaling Channels Signaling ATM Adaptation Layer (SAAL) Operations Requirements Overview of SAAL: AAL5, SSCOP, and SSCF AAL Type 5 Common Part SSCOP/SSCF Configuration Management Requirements viii

5 GR 1248 CORE Issue 4, November 1998 Contents SSCOP/SSCF Fault Management Requirements SSCOP/SSCF Performance Management Requirements ATM Access Signaling Operations Requirements Access Signaling Channel Operations Requirements Configuration Management Requirements Fault Management Requirements Performance Management Requirements Operations Requirements in Support of Call/Connection Management Call/Connection Management: Configuration Management for SVCs Call/Connection Management: Fault Management of SVCs Call/Connection Management: Performance Management of SVCs Management of Proxy Signaling Configuration of Proxy Signaling Fault Management of Proxy Signaling Performance Management of Proxy Signaling ATM Interoffice Signaling Operations Requirements Overview of Interoffice Signaling Architectures The Quasi-Associated Mode The Associated Mode Terminology Interoffice Signaling Link Operations Requirements MTP3 Operations Requirements BISUP Signaling Link Operations Requirements Operations Requirements in Support of BISUP Call/Connection Management Call/Connection Configuration Management Call/Connection Performance Management: NDC Requirements Service Operations Requirements Support of Switched Multi-Megabit Data Service (SMDS) ATM NE Operations Requirements Supporting a SMDS SNI Support for SMDS on a B-ICI or B-INNI PVC-Based Frame Relay Service Service Support ATM NE Operations Requirements Supporting Frame Relay Service PVC-Based FRS Support on a B-ICI PVC-Based ATM Cell Relay Service Circuit Emulation Service Unspecified Bit Rate (UBR) and Available Bit Rate (ABR) Services Unspecified Bit Rate ix

6 GR 1248 CORE Contents Issue 4, November ABR Inverse Multiplexing for ATM (IAM) Requirements IMA Overview Operations Support for IMA IMA Configuration Requirements IMA Fault Management Requirements IMA Performance Management Requirements Appendix A: Supporting PVC FRS on a B-ICI/B-INNI...A-1 A.1 Operations Criteria for FRS Above AAL Type 5...A-1 A.1.1 Architectural Perspective...A-2 A.1.2 Configuration Management Criteria...A-2 A.1.3 Performance Management Criteria...A-5 A.1.4 Fault Management Criteria...A-8 A.1.5 Network Data Collection Criteria...A-9 Appendix B: Supporting SMDS on a B-ICI/B-INNI...B-1 B.1 SMDS/ATM Network Interworking Functions...B-1 B.2 ICIP_CLS Layer Specification...B-3 B.2.1 ICIP_CLS_PDU Format...B-3 B.2.2 ICIP_CLS Layer Procedures...B-7 B.3 Operations Criteria to Support SMDS...B-9 B.3.1 Configuration Management Criteria for Inter-Carrier SMDS... B-11 B.3.2 Configuration Management Criteria for Inter-Switch SMDS... B-12 B.3.3 Performance Monitoring Criteria... B-19 B.3.4 Fault Management Criteria... B-24 B.3.5 Network Data Collection Criteria... B-26 Appendix C: Requirement-Index Table...C-1 Appendix D: Requirement-Object List...D-1 Requirement-Object Index...ROI-1 References...References-1 Glossary... Glossary-1 Acronyms...Acronyms-1 x

7 GR 1248 CORE Issue 4, November 1998 List of Figures List of Figures Figures Figure 1-1. Scope and Relationship of Selected ATM Documents Figure 2-1. Virtual Channel Connections Figure 2-2. Virtual Path Connections Figure 2-3. Reserved VCIs at a UNI Figure 2-4. BISDN/ATM Network Access Scenarios Figure 2-5. Example Initial BISDN/ATM Network Architecture Figure 2-6. TMN Layers and Scope of this Document Figure 2-7. Example of Physical Implementation Architectures Figure 4-1. Common OAM Cell Fields Figure 4-2. Illustration of VP/VC Connections and Segments Figure 4-3. Placement of UPC/NPC Relative to Segment End Points Figure 4-4. Point-to-Multipoint ATM Connection Figure 4-5. Example Point-to-Multipoint OAM Loopback Figure 5-1. Example Configuration of Two Virtual UNIs Figure 6-1. State Transition Diagram for Maintenance States Figure 6-2. VPC/VCC Defect Indications Figure 6-3. State Changes and Message Flows for Example Connection Figure 6-4. Relationship Between VP Defect Indications and VC Defect Indications Figure 6-5. Propagation of DSn/SONET and VPC/VCC Level Defect Indications Figure 6-6. AIS/RDI Fault Management OAM Cell Format Figure 6-7. Segment AIS/RDI Defect Indications via TMN Assigned Segment Endpoints Figure 6-8. SONET/ATM Maintenance Signal Interaction Figure 6-9. Generic PDH/ATM Maintenance Signal Interaction Figure Two Methods for Inserting CC Cells at the Transmitting Interface Figure DSn Generation AIS at Different Points of a Circuit Emulated Connection Figure AIS Propagation Behavior for Different Fault Locations Figure Interactions Between Frame Relay Status Signaling and ATM OAM Cells Figure Example of Alarm Notification at Different ATM NEs Figure Loopback Examples Figure Example of ATM NE Actions Upon Receiving Loopback Cell Figure Loopback Fault Management OAM Cell Format Figure 7-1. Sending and Receiving IWFs Figure 7-2. Format of the SAR-PDU for AAL Type Figure 7-3. Performance Problems Detected by the Receiving AAL Type xi

8 GR 1248 CORE List of Figures Issue 4, November 1998 Figure 7-4. Format of the SAR-PDU for AAL Type 3/ Figure 7-5. Format of the Common Part of the AAL Type 3/4 PDU Figure 7-6. Format of the Common Part of the AAL Type 5 PDU Figure 7-7. A Performance Monitoring Block Figure 7-8. Segment and End-to-End Performance Monitoring Concurrence Figure 7-9. Variability of PM Block Sizes Figure Example of Bi-directional End-to-End Performance Monitoring Figure Example of Uni-Directional Segment Performance Monitoring Figure Performance Management OAM Cell Format Figure Role of PM Cell Block Results in Estimating QOS Parameters Figure Alternative Methods of Counting Transmitted User Cells at Non-End Points Figure Additional Parameters Used for Performance Analysis Figure Example of Probability Density of Cell Arrival Delays Figure Relative Positioning of Congestion Thresholds Figure 8-1. Format of Activation/Deactivation OAM Cell Figure 8-2. Activation Handshaking Procedure Figure 8-3. Deactivation Handshaking Procedure Figure 9-1. Example of Time in Each MC Level Figure 9-2. Estimation of Cell Loss in an ATM NE Figure ATM NE Resource Aggregation Scenarios Figure Model for Management of OAM Resources Used by Interface to Perform OAM Processes Figure An Example ATM NE Operations Access Interfaces Figure ATM Interface Management Figure PVC CRS CNM Access Architectures and CNM Protocol Stack Figure ILMI Protocol Stack Figure Signaling Protocol Below the Signaling Layer Figure Sequence of State Changes During Successful Proving of an Interoffice Signaling Link Figure Transitions to Failure of an Interoffice Signaling Link Figure Access Signaling on a UNI Figure Example Signaling Configuration of Two V-UNIs Figure Proxy Signaling Figure The Quasi-Associated Mode of Interoffice Signaling Figure Protocol Stack for the Associated Mode of Interoffice Signaling Figure An Example Signaling Configuration Figure Example of Signaling Link Configuration Figure Example of Signaling Link Configuration Figure Sequence of Events for Destination Unavailable Notification Figure Sequence of Events for User Part Unavailable Notification Figure Sequence of Events During Consistency Check Figure An Example Configuration of VPCIs Figure An Example of Physical and Trunking Topologies xii

9 GR 1248 CORE Issue 4, November 1998 List of Figures Figure Interfaces Supporting SMDS Figure Example Architecture Supporting SMDS Figure Interfaces Supporting Frame Relay Service Figure Examples of AAL Type 1 Supported Circuit Emulation Service Figure ABR Service Cell Flows Figure RM Cell Flows at ATM NE With VS/VD Figure Inverse Multiplexing for ATM Figure A-1. Configuration Management Related Elements...A-3 Figure B-1. Examples of Remote (a) SMDS SNI and (b) SMDS UNI Configurations...B-2 Figure B-2. Intra-Carrier/Inter-BSS Service Specific Information Field Format...B-6 xiii

10 GR 1248 CORE List of Figures Issue 4, November 1998 xiv

11 GR 1248 CORE Issue 4, November 1998 List of Tables List of Tables Tables Table 3-1. OSI Operations Interface Protocol Stack for the Interactive Class Table 3-2. TCP/IP Operations Interface Protocol Stack for the Interactive Class Table 4-1. OAM Type / Function Type Identifiers Table 4-2. ATM OAM Function Usage Table 5-1. Parameters Required in Each Service Category Table 5-2. Service Categories, Service Class, QoS, and AAL Table 5-3. Applicable Parameters for Conformance Definitions of TM Table 5-4. Applicable Parameters for Conformance Definitions in UNI Table 5-5. Additional Feedback Related Parameters for ABR Service Table 6-1. FR-to-ATM IWF Fault Indications Table 6-2. ATM-to-FR IWF Fault Indications Table 6-3. List of Generic Troubles, and Default Severities Table 7-1. Requirements Status of Physical Rates at Each Interface Table 7-2. Parameters for Monitoring ATM Cell Header Processing Table 7-3. AAL Type 1 Performance Monitoring Parameter Table 7-4. AAL Type 3/4 Performance Monitoring Parameters Table 7-5. AAL Type 5 Performance Monitoring Parameters Table 7-6. Examples of Lost/Misinserted Counts, and Inferred Number of Lost CLP=0 Cells Table 7-7. VP/VC Performance Monitoring Parameters Table 7-8. NTM Surveillance Measurements, per Congestable ATM Module Table 8-1. Potential Configuration Options of OAM PM Cell Flows Table 8-2. Message ID Values Table 8-3. PM Block Size Encoding Table 9-1. NDC Scheduled Measurements: Per Interface and Per Virtual Connection Table 9-2. NDC Scheduled Measurements: Per ATM NE Module Table Parameters for ATM PVCs Table Parameters for Intra-Network ATM SVCs Table Parameters for Inter-Network ATM SVCs Table Parameters for Message Detail Recording Table Parameters for the Network Call Correlation Identifier Table Parameters for Point-to-Multipoint ATM SVCs Table Parameters and Timers for SSCOP Table Parameters and Timers for SSCF-NNI and SAAL Layer Management Table SSCOP Protocol Monitoring Parameters Table Cause Values for Unavailable Routes Table Cause Values for Resource Unavailability xv

12 GR 1248 CORE List of Tables Issue 4, November 1998 Table Cause Values for Called Party Events Table Cause Values for Incorrect Messages Table Cause Values for Calling Party Events Table DSS2 Performance Monitoring Counters Table Locations at Which Subscription Features Apply Table An Example of VPI Mapping at the Vb Interface Table BISUP Timers Table BISUP Performance Management Parameters Table Example of Route List for Call Destined to D from A Table Related SMDS Requirements Documents Table Related Frame Relay Service Requirements Documents Table IMA Group States Table B-1. GR-1063-CORE Administered Data Distribution Across Two BSSs... B-13 Table B-2. Distribution of Administered Data Across Two BSSs... B-20 Table B-3. Summary of Inter-Switch SMDS Scheduled Measurements... B-28 Table C-1. Requirements Index...C-2 xvi