Senior Network Design Seminar Professor Morteza Anvari 10

Senior Network Design Seminar Professor Morteza Anvari 10 December 2004 e. Health Network Monitoring Network Tool Presentation J. Gaston

Purpose of Monitoring n Network monitoring is a method of efficiently ensuring several goals are achieved – Availability • Ensure customers can use the network and its supported • systems for a specified percentage of time Reduce MTBF and MTTR by quickly identifying root cause of outages – Performance • Ensure a variety technical metrics are achieved by providing • real-time measurement of enterprise’s current operation Examples are capacity, utilization, accuracy, etc. – Manageability • Modify operating parameters, traffic patterns, and device configurations based on current system health and status

Monitoring Objectives n Manage performance and availability of LANs, WANs, and network devices n Measure current performance to establish a baseline and verify compliance with service level agreements (SLAs) n Prevent outages and ensure availability by identifying which resources are at risk of failure n Manage servers supporting network services, such as firewalls, DNS, and DHCP servers, on Windows and UNIX platforms n Perform continuous, active tests of application availability and functionality

Concord’s Approach ~ Business Service Management delivers… n Visual representation of the dependencies between business processes, business applications and the IT infrastructure. n Reduced downtime and shorter problem resolution time because IT support focuses on solving the correct, high priority, business-relevant issues. n Operational efficiency because operators can use a single console for viewing the status of business services as well as for displaying IT infrastructure views. n Business service views can be customized and enabled for viewing by business users, thus giving the line of business a better understanding of how the IT infrastructure is performing.

Conceptual Enterprise Monitoring End User Services System and Application Infrastructure Network Infrastructure and Services

Conceptual Enterprise Monitoring

Practical Service Management Business Service view Real time fault Performance Availability Server Monitoring Agents Network Health® n LAN/WAN n IP Telephony n Qo. S n Router/Switch n Remote Application Availability Robots Application Response Agents Application Performanc e Managemen Application Monitoring n DSL n Wireless LAN Access n ATM n Frame Relay n Cable n Mobile Wireless Network Management Traffic Analysis System and Application Manageme nt

e. Health Functionality n Variety of mechanisms monitor enterprise at multiple levels – System. Edge agents installed on servers to track CPU load, memory usage, and disk activity – RMON probes collect packet statistics and protocol data from links, paths, and network devices – Capable of receiving third party MIBs to leverage existing technology and monitoring solutions n Information assembled by central console server and correlated to build various views and reports – Oracle database provides backend storage and data management – Rules and thresholds highly customizable to ensure

Information Flow and Detail Business view – the status of the business service Operational view – status of application, system and network components Alarm detail – drill down for more information to resolve problems quickly Users Networks Servers and Applications

Enterprise View Real-time update of service availability and problem duration

Site View Real-time update of end user response by region

Service Details Understand all details of the service: application, server, and

Questions? e. Health Network Monitoring http: //199. 221. 15. 35/bin/welcome. sh Network Tool Presentation J. Gaston CIS 460