| Hands-On 5ESS Switch Analysis |
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| Hands-On 5ESS Switch Analysis |
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Customized Lessons That Will Be Developed for You
This lesson, 5ESS Switch Overview, presents a brief overview of the 5ESS Switch. This overview presents the hardware structure of the 5ESS Switch which includes defining the Administrative Module, Communication Module and Switching Module. It also states the function of the 5ESS Switching Module Peripheral Units and presents their connectivity to the Switching Module Processor and Time Slot Interchanger. This establishes some of the basic knowledge needed for the remainder of this course.
The PLANT 24 lesson presents and analyzes the 5ESS Plant 24 Report. The Plant 24 Report contains Parts that can be used to evaluate the level of service currently being provided by a 5ESS Switch. This lesson presents these Plant 24 Parts and provides procedures on how to interpret them. The emphasis is placed on identifying operational and service performance problems that have occurred. During this lesson, three 5ESS Switches will be evaluated. This lesson includes references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation and relates procedures in the lesson to the documentation.
This Output Messages and Log Files lesson defines the characteristics of 5ESS Output Messages, how they are routed and the 5ESS Log Files they are “logged” to. This is accomplished by presenting Output Message Classes and explaining how Output Messages are routed based on the Equipment Configuration Database (ECD) - Class Definition Record, form "classdef." The lesson also presents the Input Messages OP:LPS,MSGCLS and OP:OUTCLS which identify Message Class printing and logging status. Next, the lesson addresses log files. The log files addressed are the Administrative Module UNIX RTR Log Files, Common Network Interface Log Files and 5ESS Log Files.
The Initialization Analysis lesson presents procedures for post recovery analysis of Administrative Module Initializations, Communication Module Initializations, Switching Module Initializations and Common Network Interface Initializations. Recovery from an initialization is covered in Alcatel-Lucent’s System Recovery (235-105-220) document and CNI Common Channel Signaling (235-200-115) document. After recovering from an initialization it is very important to identify why the initialization occurred so corrective actions can be performed so the initialization does not reoccur. This lesson presents this “post” initialization analysis. The lesson analyzes Initialization Messages, other Printouts associated with the initializations, Administrative Module Postmortem printouts, Communication Module Event History (Postmortem) printouts (and dumps), Switching Module Event History (Postmortem) printouts (and dumps) and Common Network Interface Log Files. The lesson includes references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation and relates procedures in the lesson to the documentation.
This TMS Post Mortem and Asynchronous Failure lesson presents procedures to analyze TMS failure printouts and identify the circuitry involved with the failure. The lesson provides a detailed description and handouts of the CM2 Office Network and Timing Complex (ONTC) and TMS terminations. It then relates the different TMS printouts, reports and dumps to their physical components. The lesson also identifies how to determine the direction (CM or SM) the TMS error was received from. The lesson includes register breakdown examples, charts and references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation.
This MMRSM, RSM, ORM and EXM–2000 Stand Alone Analysis lesson presents procedures for the post analysis of a Multi Module Remote Switching Module (MMRSM), Remote Switching Module (RSM), Optically Integrated Remote Module (ORM) and Extended Switch Module – 2000 (EXM–2000) Stand Alone occurrence. Recovery from a Stand Alone is covered in Alcatel-Lucent’s System Recovery (235-105-250) document. After recovering from a Stand Alone it is very important to identify why the Stand Alone occurred so corrective actions can be performed to ensure the Stand Alone does not reoccur. The Recovery from a Stand Alone usually identifies and cares for the cause of the outage. The next important item is to identify the time frames of the Stand Alone and its service impact. This lesson presents procedures to identify when the Stand Alone occurred, the impact to service caused by the Stand Alone and when the Stand Alone cleared. These items are usually required for regulatory notifications of the service outage. The lesson includes references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation and relates procedures in the lesson to the documentation.
This lesson, Single Process Purge (SPP) and Return to Point of Interrupt (RPI) Analysis, presents procedures to analyze SPP and RPI events and messages. The lesson begins by defining what an SPP and RPI is and the type of failures they identify. The lesson then addresses analyzation procedures for Dual Link Interface (DLI) and Network Link Interface (NLI) failures, Data Interface (DI PIDB PARITY) failures, Control Interface (CI) failures and Memory (CORR BIT, MEM-SYSTEM and PARITY ERROR) failures. This includes the analysis of other related and supplemental messages created by the failure. The effect to customer service is also discussed with each problem. This lesson includes references to Lucent’s Dyna Text 5ESS Switch support documentation and relates procedures in the lesson to the documentation.
The Audit Analysis lesson presents procedures to analyze UNIX RTR and 5ESS Application Audit messages. The lesson begins by defining what an Audit is, the different types of Audits and how Audits are run. From this point, the lesson goes on to present procedures to analyze UNIX RTR Audits. The lesson presents the UNIX RTR Audit and then uses Alcatel-Lucent’s Output Manual (235-600-750) and Audits Manual (235-600-400) to analyze a UNIX RTR Audit. Next, the lesson presents a brief overview of Dynamic and Static Relations. This knowledge is required in order to analyze 5ESS Application Audits. The 5ESS Application Audit analysis identifies how the Audit was run (Segmented, Elevated or Non Segmented (Directed/Demand)) and how the Audit was requested. Several 5ESS Application Audit Events are analyzed along with relating the Audits to other failures, such as Asserts. This lesson includes references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation and relates procedures in the lesson to the documentation.
This Assert Analysis lesson presents procedures to analyze Manual Action Asserts, Routing and Terminal Allocation (RTA) Asserts and Defensive Check Failure (DCF) Asserts messages. The lesson begins by defining what an Assert is, the variety of failures they identify and the different types of Asserts. Next, the lesson addresses each of the Assert messages: Manual Action Asserts, Routing and Terminal Allocation Asserts and Defensive Check Failure Asserts. The lesson presents procedures on how to obtain an Assert definition through the 5ESS Unix Shell (RCV:MENU:SH) and Alcatel-Lucent’s DynaText Assert Manual (235-600-500). The lesson goes on to analyze each type of Assert message and its related messages including any related audit messages. This lesson also presents several 5ESS Switch Data Structures used to store call processing information in Assert Stack Frames and Register Dumps. The analysis procedures presented include references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation.
The Transport Facility Performance Monitoring lesson presents Transport Facilities as they relate to the 5ESS Switch. The lesson begins by defining the transport facilities within the telecommunications industry. This is followed by identifying how these transport facilities terminate in the 5ESS Switch. In order to understand Performance Monitoring, the students need a short analog/digital conversion presentation which is presented next. This leads into Line Coding, Framing and Signaling along with where these items are optioned in the 5ESS Switch. The lesson completes by presenting 5ESS Performance Monitoring and 5ESS Switch Transport Facility fault analyzation procedures. This lesson includes references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation and relates procedures in the lesson to the documentation.
The Machine Detected Interoffice Irregularities (MDII) Analysis lesson Trunk operation and how Trunk operational and signaling failures are identified through Machine Detected Interoffice Irregularity (MDII) messages. This lesson presents procedures to analyze Machine Detected Interoffice Irregularities. The lesson begins by defining what an MDII is and the reasons why they occur. This is followed by presenting and deciphering the MDII output message along with determining the effect on customer service. The lesson provides procedures on how to obtain MDII printouts based on failure type and/or Trunk Group. Throughout this lesson different MDII printouts are presented and analyzed. This lesson includes references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation and relates procedures in the lesson to the documentation.
This Cutoff Call Analysis lesson presents procedures to detect and identify the source of customer Cutoff Calls. The lesson begins by defining what constitutes a cutoff call and how daily cutoff call counts are reported in the 5ESS Switch. The lesson then provides Cutoff Call maintenance input messages and several filters to obtain Cutoff Call output messages. Seven Cutoff Call messages are analyzed and the physical equipment involved with each Cutoff Call is identified. The lesson completes by presenting several “helpful hints” to determine the source of Customer Cutoff Calls. This lesson includes references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation and relates procedures in the lesson to the documentation.
This Peripheral Unit Error Analysis lesson presents two procedures to identify and correct Peripheral Unit Errors. The lesson starts by defining Peripheral Unit Errors and what they can escalate to. Next, the lesson presents the Peripheral Unit Error Analysis procedure stated in Alcatel-Lucent’s 5ESS Switch System Maintenance Requirements and Tools document (235-105-110). This is followed by presenting a second procedure involving the analysis of Switching Module Event History (Postmortem) printouts. Both procedures can identify failing circuits and components. This lesson includes references to Alcatel-Lucent’s Dyna Text 5ESS Switch support documentation and relates procedures in the lesson to the documentation.