Diagnostics tools on a DOCSIS network have traditionally been part of a reactive, break-fix methodology, where the operator is notified about issues in their plant AFTER service for subscribers have been impacted. In fact, it is often complaints [...]

Correlation Groups and vTDR in Proactive Network Maintenance
By Sheenika Wilson | October 1st, 2014 |Categories: Ask an Expert, PNM, proactive network maintenance, correlation groups, ask a broadband expert, PreEqualization Analyzer, vTDR
As its name suggests, proactive network maintenance (PNM) allows cable operators to get ahead of the curve in being able to diagnose issues in the cable plant. When network impairments are concentrated in an area, it’s easier to locate the [...]

Finding Common Impairments with DOCSIS Proactive Network Maintenance
By Marsha Hemmerich | September 19th, 2014 |Categories: Ask an Expert, PNM, proactive network maintenance, correlation groups, ask a broadband expert, DOCSIS pre-equalization, PreEqualization Analyzer, technical paper
Proactive network maintenance (PNM) and DOCSIS pre-equalization are important tools to mitigate upstream impairments. When a CMTS has pre-equalization enabled, it can look at the quality of the signals being received from all of the cable [...]