HFC network performance monitoring system using DOCSIS cable modem operation data in a 3 dimensional analysis

Abstract

This paper investigates the HFC network performance system following DOCSIS (Data Over Cable Service Interface Specifications) standard. The parameters in the forward path and return path are collected from CMTS (Cable Modem Termination System) which communicate with the cable modem and used to analyze the network performance in a 3-dimensional graph. The result provides a 3-D diagram which is a tool to analyse the network performance base on network criteria. The parameters obtained from each block in 3D space represents the state of the network. It shows the symptom that the network is suffering. The resulting measures can be used key performance indices for the network.