Course Description:
The Genband (formerly Nortel) DMS-10 Switch Support course was developed to help telcos continue to support their extensive DMS-10 networks with less reliance upon external resources.
As with many switching systems, the DMS-10's overall reliability is high enough that techs do not often work with advanced problems, so that when such problems do occur, it can be difficult to know how to proceed.
Overlays are looked at in detail, looking special commands like SWCH, CHG, DNLD, 1BUS, and other recovery or firmware related options. Exercises and examples are provided to show how to upgrade the firmware of all system processors, or just certain ones like the 3T98 CPU. These examples are helpful for understanding how any processor in the system can be reloaded, which may become necessary for individual maintenance issues.
Remotes are also looked at in more detail, where OVLY CNFG is used to understand what types of remotes are equipped and how they are engineered. Cables and links are studied, to help understand how the host Network ultimately provides switching to a distant remote over carrier spans. This requires understanding of various hardware components including the DCMDSI, SRLKs, HIE, RCC, and with HSO-SSO, the DLC modules.
Additional documents are studied, including environmental, electrical, and grounding, plus Installation Methods which show processes for system cabling, upgrades, and conversions. These procedures may not always be used today, but such documents serve as excellent benchmarks for complex troubles.
Other topics like OVLY LOG, Operational Measurements, and Bug Messages are reviewed, plus there are several examples from real-world troubleshooting, including outages, CPU, and other common-control hardware faults.
The course covers a broad range of knowledge, yet is flexible and can be changed to match the specific needs of a given telco or region, and the types of hardware used locally.
Students Will Learn:
Course Length:
5 Days
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