TR NWT 000474 : ISSUE 4
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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NETWORK MAINTENANCE: ALARM AND CONTROL - NETWORK ELEMENT
01-12-1997
12-01-2013
1 Introduction
1.1 Relationship to other Bellcore Technical
Documents
1.2 Purpose of and Changes to the Document
1.3 Scope of Document
1.4 Overview of Surveillance-Based Maintenance
1.5 Organization of Document
1.6 Requirements Terminology
2 Criteria Common to Switching and Transport NEs
2.1 Trouble Detection
2.2 Trouble Notification
2.2.1 Types of Trouble Notifications
2.2.2 General Message Criteria for Trouble
Notifications
2.2.3 Alarmed Trouble Notification Severity
2.2.4 CO Alarm Subsystem
2.2.5 Alarm Indication Signal
2.2.6 Synchronization
2.3 Service Recovery
2.3.1 Manual Service Recovery
2.4 Trouble Verification
2.5 Trouble Isolation
2.5.1 Manual Maintenance Actions
2.6 Repair
2.7 Maintenance Person - NE Interface
2.7.1 Centralization of Maintenance Functions
2.7.2 Common Physical Control / Status Interface
Criteria
2.7.3 Maintenance Documentation
3 Criteria for Switching System NEs
3.1 Trouble Detection
3.1.1 Trouble Detection Tests
3.1.2 Other System Strategies for Trouble Detection
3.1.3 Trouble Detection Inhibiting
3.2 Trouble Notification
3.2.1 General Message Criteria for Trouble Notifications
3.2.2 Alarmed Trouble Notification Severity
3.2.3 CO Alarm Subsystem
3.3 Service Recovery
3.3.1 Automatic Service Recovery
3.3.2 Manual Service Recovery
3.3.3 Hardware Redundancy
3.4 Trouble Verification
3.4.1 Periodic Automatic Verification
3.4.2 Demand Verification Capabilities
3.5 Trouble Isolation
3.5.1 Trouble Isolation Procedure
3.5.2 Fuse Trouble Isolation
3.5.3 Diagnostic Raw Data Report
3.5.4 Error Analysis
3.6 Repair
3.6.1 OOS State Criteria
3.6.2 Assurance of OOS before Repair
3.6.3 Power Removal before Repair
3.6.4 Physical Repair
3.6.5 Restoration of Equipment to Active or Standby State
3.6.6 Mean Time to Repair
3.7 Maintenance Person - NE Interface for Switching
NEs
3.7.1 Switching System Centralization of Maintenance
Functions
3.7.2 Switching System Physical Control / Status
Interface Criteria
3.7.3 Switching System Maintenance Messages Interface
3.7.4 Changes and Verifications to Switching System
Software
3.7.5 Voice Communications
3.7.6 Extended Maintenance Capabilities (Beltline)
3.7.7 Physical Design for Maintenance
4 CS NE Generic Requirements
4.1 Trouble Detection
4.2 Trouble Notification
4.2.1 Output Message Categories
4.3 Service Recovery
4.4 Trouble Verification
4.5 Trouble Isolation
4.6 Repair
4.6.1 Software Repair
4.7 CS Maintenance-Person - NE Interface
5 PS NE Generic Requirements
5.1 Trouble Detection
5.2 Trouble Notification
5.3 Service Recovery
5.3.1 Automatic Treatment of Faults
5.3.2 Automatic Escalating Levels of PS Initializations
5.4 Trouble Verification
5.5 Trouble Isolation
5.6 Repair
5.6.1 Software Repair
5.7 PS Maintenance-Person - NE Interface
5.7.1 PS Centralization of Maintenance Functions
5.7.2 PS Physical Control / Status Interface Criteria
5.7.3 Maintenance USI Device Criteria
5.7.4 Remote I/O Message Capability
6 CCS Generic Requirements for Switching NEs
6.1 Trouble Detection
6.1.1 Trouble Detection Speed and Impact on Service
6.1.2 Trouble Detection Strategy Order
6.2 Trouble Notification
6.2.1 Alarm Classification
6.2.2 Hourly Status Message Report
6.3 Service Recovery
6.3.1 Automatic Service Recovery
6.3.2 Hardware Redundancy
6.4 Trouble Verification
6.5 Trouble Isolation
6.6 Repair
6.7 CCS Maintenance Person - NE Interface
6.7.1 CCS Centralization of Maintenance Functions
6.7.2 CCS Physical Control / Status Interface Criteria
7 ISDN Switch Generic Requirements
7.1 Trouble Detection
7.1.1 Physical, Data Link, and Network Layer
Surveillance
7.1.2 Intraswitch Path Error Analysis and Diagnosis
7.2 Trouble Notification
7.2.1 Service-Affecting Resources
7.3 Trouble Verification, Isolation, and Repair
Verification
7.3.1 Call Trace
7.3.2 Testing
7.3.3 Embedded Operations Channels
8 Criteria for Transport NEs
8.1 Trouble Detection
8.2 Trouble Notification
8.2.1 Multipling of Trouble Notifications
8.2.2 Alarmed Trouble Notification Severity
8.2.3 Telemetry Trouble Notifications
8.2.4 Line Equipment Requirements
8.2.5 Path Equipment Requirements
8.3 Service Recovery
8.3.1 Trouble Notifications for Protection Switches
8.3.2 Failure of Protection Switching Equipment
8.3.3 Inhibition of Protection Switching
8.3.4 Completion of Protection Switching
8.4 Trouble Verification
8.5 Trouble Isolation
8.6 Repair
8.6.1 Local Output
8.6.2 Maintaining Service During Repair
References
Glossary
LIST OF FIGURES
Figure 1-1 Where Trouble Indications Appear
LIST OF TABLES
Table 2-1 Visible CO Alarm Color Assignments
Table 3-1 Test Frequency and Significant Outage Criteria
Table 3-2 Mean Time to Repair
Table 7-1 Errored Seconds Threshold
Presents Bellcore's view of proposed generic requirements that relate to the maintenance and surveillance of Switching Network Elements (NEs), Transport System NEs, and other related Central Office (CO) equipment.
| DevelopmentNote |
Supersedes TR TSY 000474 (03/2004)
|
| DocumentType |
Standard
|
| PublisherName |
Telcordia Technologies
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| GR 2968 CORE : ISSUE 3 | ISDN PRIMARY RATE INTERFACE (PRI): E9-1-1 TANDEM/END OFFICE TO ISDN PSAP INTERFACE |
| GR 472 CORE : ISSUE 2 REV 2 | OPERATIONS TECHNOLOGY GENERIC REQUIREMENTS (OTGR) SECTION 2.1: NETWORK ELEMENT CONFIGURATION MANAGEMENT |
| GR 2963 CORE : ISSUE 3 | NETWORK ELEMENT CONFIGURATION MANAGEMENT - SOFTWARE MANAGEMENT |
| GR 834 CORE : ISSUE 3 | NETWORK MAINTENANCE: ACCESS AND TESTING MESSAGES |
| GR 2960 CORE : ISSUE 1 | INTRALATA CARRIER IDENTIFICATION FOR ISDN GENERIC REQUIREMENTS |
| GR 866 CORE : ISSUE 1 REV 1 | ISDN MESSAGE SERVICE GENERIC SWITCHING AND SIGNALLING REQUIREMENTS |
| GR 2967 CORE : ISSUE 3 | ISDN BASIC RATE INTERFACE (BRI): E9-1-1 TANDEM/END OFFICE TO ISDN PSAP INTERFACE |
| SR NWT 002457 : ISSUE 1 | NATIONAL ISDN-3 |
| SR 3645 : ISSUE 1 | COMPENDIUM OF REQUIREMENTS FOR THE USER INTERFACE TO TELEPHONE NETWORK EQUIPMENT |
| GR 301 CORE : ISSUE 2 | PUBLIC PACKET SWITCHED NETWORK GENERIC REQUIREMENTS (PPSNGR) |
| GR 1248 CORE : ISSUE 4 | GENERIC REQUIREMENTS FOR OPERATIONS OF ATM NETWORK ELEMENTS |
| SR 3476 : ISSUE 1 | NATIONAL ISDN 1995 AND 1996 |
| GR 2965 CORE : ISSUE 1 | GENERIC REQUIREMENTS FOR ISDN PRI MULTI-B-CHANNEL CONFERENCING |
| GR 2945 CORE : ISSUE 1 | YEAR 2000 GENERIC REQUIREMENTS: SYSTEMS AND INTERFACES |
| GR 282 ILR : ISSUE 3A | SOFTWARE RELIABILITY AND QUALITY ACCEPTANCE CRITERIA |
| GR 2865 CORE : ISSUE 3 | GENERIC REQUIREMENTS FOR ISDN PRI TWO B-CHANNEL TRANSFER |
| SR 4037 : ISSUE 1 | DEGRADATION IN TRANSMISSION PERFORMANCE OF FIBER OPTIC VIDEO CIRCUITS |
| GR 2856 CORE : ISSUE 2 | GENERIC REQUIREMENTS FOR D-CHANNEL MESSAGE PERFORMANCE MONITORING AND CONTROL ON INTEGRATED SERVICED DIGITAL NETWORK (ISDN) INTERFACES |
| TR TSY 000752 : ISSUE 1 | MICROWAVE DIGITAL RADIO SYSTEMS CRITERIA |
| TR NWT 001219 : ISSUE 1 REV 1 | ISDN PRIMARY RATE ACCESS TESTING REQUIREMENTS |
| TR NWT 001213 : ISSUE 1 | OBJECTIVES FOR THE MAINTENANCE USER INTERFACE OF SWITCHING SYSTEMS AND TRANSPORT SYSTEMS |
| TR NWT 000303 : ISSUE 2 SUPP 1 | INTEGRATED DIGITAL LOOP CARRIER SYSTEM GENERIC REQUIREMENTS, OBJECTIVES, AND INTERFACE (A MODULE OF TSGR, FR-NWT-000440) |
| TR TSY 000473 : ISSUE 3 | OTGR: NETWORK MAINTENANCE: COMMON, SECTION 3 |
| FR NWT 000481 : ISSUE 93 | OTGR: GENERIC OPERATIONS INTERFACE |
| TR TSY 000009 : ISSUE 1 | ASYNCHRONOUS DIGITAL MULTIPLEXES REQUIREMENTS AND OBJECTIVES |
| TR NWT 000836 : ISSUE 1 | OTGR: GENERIC OPERATIONS INTERFACES USING OSI TOOLS INFORMATION MODEL USAGE: TRANSPORT CONFIGURATION AND SURVEILLANCE FOR NETWORK ELEMENTS (A MODULE OF OTGR, FR-NWT-000439) |
| TR NWT 000478 : ISSUE 4 | OTGR: MEASUREMENTS AND DATA GENERATION, SECTION 8 (A MODULE OF OTGR, FR-NWT-000439) |
| TR NWT 000057 : ISSUE 2 | FUNCTIONAL CRITERIA FOR DIGITAL LOOP CARRIER SYSTEMS |
| TR TSY 000010 : ISSUE 1 | SYNCHRONOUS DS3 ADD DROP MULTIPLEX (ADM 3/X) REQUIREMENTS AND OBJECTIVES |
| TA TSY 000435 : ISSUE 1 | DS1 AUTOMATIC FACILITY PROTECTION SWITCHING (AFPS) FEATURE FOR DIGITAL TERMINAL SYSTEMS REQUIREMENTS AND OBJECTIVES |
| TA TSY 000038 : ISSUE 3 | DIGITAL FIBER OPTIC SYSTEMS REQUIREMENTS AND OBJECTIVES |
| TR TSY 000829 : ISSUE 1 REV 1 | OTGR SECTION 11.3: GENERIC OPERATIONS INTERFACE - EMBEDDED OPERATIONS CHANNELS, SECTION 11.3 |
| TR TSY 000454 : ISSUE 1 | SUPPLIER DOCUMENTATION FOR NETWORK ELEMENTS |
| TR NWT 000909 : ISSUE 1 BULL 2 | GENERIC REQUIREMENTS AND OBJECTIVES FOR FIBER IN THE LOOP SYSTEMS |
| FR NWT 000439 : ISSUE 94 | OPERATIONS TECHNOLOGY GENERIC REQUIREMENTS (OTGR) |
| ATIS T1.210 : 2004 | OAM&P - PRINCIPLES OF FUNCTIONS, ARCHITECTURES, AND PROTOCOL FOR TELECOMMUNICATIONS MANAGEMENT NETWORK (TMN) INTERFACES |
| TR NWT 000199 : ISSUE 2 | OPERATIONS APPLICATION MESSAGES-MEMORY ADMINISTRATION MESSAGES (OTGR) |
| TA NWT 000892 : ISSUE 4 | SWITCHING SYSTEM OPERATIONS GENERIC REQUIREMENTS FOR ISDN |
| TR NWT 000472 : ISSUE 3 | OTGR: CONFIGURATION MANAGEMENT: MEMORY ADMINISTRATION, SECTION 2 (A MODULE OF OTGR, FR NWT 000439) |
| TR NWT 000496 : ISSUE 3 | SONET ADD DROP MULTIPLEX EQUIPMENT (SONET ADM) GENERIC CRITERIA |
| FR NWT 000476 : ISSUE 93 | OTGR SECTION 6: NETWORK MAINTENANCE: ACCESS AND TESTING |
| TR TSY 000509 : ISSUE 2 REV 1 | LSSGR: MAINTENANCE, SECTION 9 (A MODULE OF LSSGR, FR-NWT-000064) |
| TR NWT 001093 : ISSUE 1 | GENERIC STATE REQUIREMENTS FOR MANAGING NETWORK ELEMENTS |
| TA NWT 000826 : ISSUE 2 SUPP 1 | |
| TR NWT 001244 : ISSUE 1 | SUPPLEMENTAL SERVICE CONTROL POINT (SCP) |
| TR TSY 000821 : ISSUE 1 REV 3 | OTGR SECTION 5.2: NETWORK MAINTENANCE: TRANSPORT SURVEILLANCE - ADDITIONAL TRANSPORT AND TRANSPORT-BASED SURVEILLANCE |
| TR NWT 000063 : ISSUE 5 | NETWORK EQUIPMENT-BUILDING SYSTEM (NEBS) GENERIC EQUIPMENT REQUIREMENTS (A MODULE OF LSSGR, FR-NWT-000064 AND OF TSGR, FR-NWT-000440) |
| TR TSY 000824 : ISSUE 2 | OTGR SECTION 10.1: USER SYSTEM INTERFACE USER SYSTEM ACCESS |
| TR TSY 000830 : ISSUE 1 | OTGR SECTION 11.4: GENERIC OPERATIONS INTERFACE OPERATIONS INTERWORKING |
| TR NWT 000833 : ISSUE 5 REV 1 | OTGR: OPERATIONS APPLICATION MESSAGES NETWORK MAINTENANCE: GENERIC REQUIREMENTS FOR NETWORK ELEMENT AND TRANSPORT SURVEILLANCE MESSAGES, SECTION 12.3 (A MODULE OF OTGR,FRNWT000439) |
| TR NWT 000284 : ISSUE 2 | RELIABILITY AND QUALITY SWITCHING SYSTEMS GENERIC REQUIREMENTS (RQSSGR) |
| TR TSV 000800 : ISSUE 6 | NSGR DIRECTORY NETWORK SYSTEMS GENERIC REQUIREMENTS |
| TR TSY 000541 : ISSUE 2 REV 2 | LSSGR: MEASUREMENTS AND ADMINISTRATION, SECTION 8.2-8.6 (A MODULE OF LSSGR, FR-NWT-000064) |
| TR NWT 000834 : ISSUE 4 REV 2 | OTGR: OPERATIONS APPLICATION MESSAGES NETWORK MAINTENANCE: ACCESS AND TESTING MESSAGES, SECTION 12.4 (A MODULE OF OTGR, FR-NWT-000439) |
| TA NWT 000253 : ISSUE 7 | SONET TRANSPORT SYSTEMS: COMMON GENERIC CRITERIA FOR OPERATIONS COMMUNICATIONS ROUTING & LAN SUPPORT (INCREMENTAL PROPOSED REQUIREMENTS TO TR-NWT-000253, ISSUE 2) |
| TR TSY 000191 : ISSUE 1 | ALARM INDICATION SIGNAL REQUIREMENTS AND OBJECTIVES (A MODULE OF TSGR, FR-NWT-000440) |
| TR NWT 000253 : ISSUE 2 | SYNCHRONOUS OPTICAL NETWORK (SONET) TRANSPORT SYSTEMS: COMMON GENERIC CRITERIA (A MODULE OF TSGR, FR NWT 000440) |
| TR NWT 000078 : ISSUE 3 | GENERIC PHYSICAL DESIGN REQUIREMENTS FOR TELECOMMUNICATIONS PRODUCTS AND EQUIPMENT |
| TR TSY 000512 : ISSUE 3 SUPP 1 | LSSGR: RELIABILITY, SECTION 12 (A MODULE OF LSSGR, FR-NWT-000064) |
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