Network  Monitoring System

IT  AUTOMATION  APPLICATIONS

What is Network Monitoring System

Features
  • System that constantly monitors a computer network.
  • Slow or failing components and that notifies the administrator
  • Via SMS , Email or other alarms.

TOPICS

  • Introduction
  • NMS Architecture
  • Browser based GUI
  • Open Source value-add Agents
  • Features

Introduction

  • Needed to monitor IT systems - 24x7
  • Are applications, web servers, databases and other services up?
  • Needed insight into performance
  • Visibility into current and historical performance and load
  • Quantifying, charting and trending of load, performance and utilization .

Brief Overview

  • Multiple items or attributes per monitored entity
  • Different items of an entity can be monitored by different mechanisms
  • Can define alerts based on comparison of current item value with historical values, averages, etc.
  • Can build dependencies between monitored entities
  • Pre-canned (template-based) graphs as well as ad-hoc graphs on any monitored item
  • User-defined maps, screens and slide-shows.

NMS OS AGENT

  • OS-level agents for most popular platforms
  • Linux
  • AIX, HP-UX, Solaris.
  • MacOS
  • Windows
  • OS agents can run external programs to complement / enhance monitoring

NMS MONITORING APPROACH

TEMPLATES
  • Define new or modify existing templates
  • Contains monitoring data elements called items
  • Contains thresholds (triggers) and actions on item
  • Collection of pre-defined graphs using items
  • Windows
  • OS agents can run external programs to complement / enhance monitoring
HOSTS
  • Hosts = monitored entity e.g. hosts, applications, databases, etc.
  • Define new hosts and link to template
  • Customize triggers and actions if necessary
  • Data Collection – by Server, Agent or Proxy