Specifications & info
Ingress occurs in every cable television network. Whenever it is present in large quantity there can be serious operational issues, the most sensitive one being the disturbance of the upstream communication of customer CPE, especially cable modems. In a highly competitive broadband market, Quality of Service is vital to customer retention as well as acquisition – so combating ingress is a high priority for operators across the world. This issue is also magnified by the increasing demand for interactive services and, of course, the introduction of DOCSIS 3.0 as a delivery platform. The impact of ingress can range from a brief reduction of throughput to a complete jamming of the upstream channels. Another unpleasant characteristic is that it can often be a random and unpredictable event.