COMM3D Network Administration and Management

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COMM3D Network Administration and Management

  1. 1. COMM3D Network Administration and Management <ul><li>Module leader: Dr Chris Stokoe </li></ul><ul><li>Ext: 3277 Room: 224F </li></ul><ul><li>[email_address] </li></ul><ul><li>http://osiris.sunderland.ac.uk/~cs0cst/ </li></ul>
  2. 2. COMM3D Network Administration and Management <ul><li>Lecture 1: </li></ul><ul><li>Module Introduction </li></ul><ul><li>and </li></ul><ul><li>Administration vs. Management </li></ul>
  3. 3. COMM3D – An Introduction <ul><li>Objectives: </li></ul><ul><li>To provide students with an appreciation of the design and implementation of fault tolerant networks by exploring the principles, practices and technologies used when managing network systems and services. </li></ul><ul><li>Themes: </li></ul><ul><li>Two key elements: </li></ul><ul><li>Network Administration – The design, implementation and administration of network systems and services. </li></ul><ul><li>Network Management – The strategies typically used to proactively ensure the availability and optimality of network systems and services. </li></ul>
  4. 4. Learning Outcomes Knowledge: (a) Critical knowledge of SNMP and its use in network management. (b) In depth understanding of the strengths and weaknesses of selected software packages that use SNMP to provide network monitoring and control services (c ) Critical understanding of the current approaches to management – OSI/TMN and SNMP and the interpolation between these approaches and the use of stand alone tools such as protocol analyzers. (d) Critical understanding of the design and installation issues of different types of networks to implement effective management strategies to maintain optimum performance and adequate network security. Abilities (e) Analyze and implement the latest protocol information and troubleshooting strategies to improve network performance. (f) Use a protocol analyzer to identify bottlenecks in networks and determine server and client response times. (g) Critically analyze network requirements and implement appropriate technology and techniques for ease of network management while maintaining an optimal performance. Abilities To be able to identify appropriate products for building web sites based on a user's specification. To be able to design solutions to user web sites specifications, including identifying relevant skills for separable sub-problems. To be able to work in a collaborative, responsibility-sharing, web design team.
  5. 5. Module Delivery Lectures – 10 taught sessions which introduce themes aimed at addressing the learning outcomes. There may be periodic revision sessions depending on progress. Tutorials – 6 supervised sessions where students can undertake practical work in the Network Labs using state of the art equipment. Additional tutorials may take place depending upon progression. Formal tutorials will start next week – Students will attend one two hour lab every two weeks. This module uses Virtual PC to provide a persistent learning environment for students. Therefore, students must only attend the labs that they are assigned to!
  6. 6. Module Assessment Assignment 1: (3 rd November - 7 th December ) An individual assignment requiring students to write a 3000 word paper addressing various aspects of Network Administration and Security. Assignment 2: (14 th December – 1st February) An individual assignment requiring students to design and critically analyse a Network Management solution for an Enterprise Network (3000 word equivalence). Assignment 3: (April) Group assignment where students must work together to produce a 20/25 minute presentation on a topic related to the module content.
  7. 7. COMM3D – Key Text Books Key Text (1): J Richard Burke: Network Management Concepts and Practice: A Hands-on Approach, Pearson Education 2004, ISBN 0-13-032950-9 Key Text (2): William Stallings: SNMP, SNMPv2, SNMPv3 and RMON 1 and 23rd Ed. Addison Wesley 1999 ISBN 0-201-485349 Lecture Notes: Available ONLINE @ http://osiris.sund.ac.uk/~cs0cst/comm3d/ To access them log on using your U. of Sunderland ID.
  8. 8. General Guidance How do I pass? Attend the lectures and the labs when requested. Submit all assessments on time – late submissions get 0% Act with the highest academic integrity – Plagiarists get 0% If you don’t understand something then ASK! Do try to read the course text books. If you miss a lecture then borrow someone else’s notes. Don’t leave assignments to the last minute.
  9. 9. COMM3D Network Administration and Management <ul><li>Lecture 1: Administration vs. Management </li></ul>
  10. 10. Objectives In today’s lecture: Introduce Network Administration Introduce Network Management Learning outcomes: Students should understand the difference between administration and management. Students should be able to identify the various tasks associated with Administration and Management
  11. 11. Administration vs. Management Computer Networks: Underpin almost every aspect of modern business therefore it is essential that they are reliable and operate at their optimum efficiency. Network Administration: The job of designing, building and maintaining a computer network falls to the systems administrator. Question: What is the difference between administration and management?
  12. 12. What is Administration? <ul><li>Network Design and Implementation </li></ul><ul><li>Installing / replacing / upgrading hardware </li></ul><ul><li>Installing / replacing / upgrading Software </li></ul><ul><li>Maintenance (chkdsk, Virus Scan) </li></ul><ul><li>Backups – Protecting Data </li></ul><ul><li>Upgrading / reinstalling O/S </li></ul><ul><li>Cabling </li></ul><ul><li>For home PC users this is DIY stuff! </li></ul>
  13. 13. So what do they do? <ul><li>Systems Admin - job description: </li></ul><ul><li>- Creation / maintenance of user accounts, groups </li></ul><ul><li>- Maintenance of filing systems </li></ul><ul><li>- Maintenance of Services (Software and Hardware) </li></ul><ul><li>- Automation of systems (through cron, etc.) </li></ul><ul><li>- Disaster recovery planning (Backups, Redundancy) </li></ul><ul><li>- Operating System - Installation and maintenance </li></ul><ul><li>- Business application - Installation and maintenance </li></ul><ul><li>- Management </li></ul><ul><ul><ul><li>Security </li></ul></ul></ul><ul><ul><ul><li>Performance monitoring </li></ul></ul></ul><ul><ul><ul><li>Predictive Maintenance </li></ul></ul></ul>
  14. 14. Typical Jobs
  15. 15. Adhoc Jobs
  16. 16. Typical Administration Tasks With 400 software packages on the system, there will be constant changes and updates required. How can we arrange for 300 machines to always have the same up-to-date version? In a network of several hundred machines, there will nearly always be at least one machine which is down. How can we be sure that this doesn't always disrupt hundreds of other machines on the network? How can we ensure that valid users have easy access to information on the network, while still keeping this information secure against unauthorised access? If it takes one person to install and maintain a single machine, how can we avoid requiring 300 people to install and maintain 300 machines? How can we arrange for a user to log on to any one of hundreds of machines and still have access to the same files and programs? How can we design the network so that tens of extra machines can be easily added without overloading, or requiring a major re-configuration, of existing systems?
  17. 17. Internal Liaisons
  18. 18. External Liaisons
  19. 19. Key Skills Technical Skills: Experience with a range of architectures and operating systems Interpersonal Skills: The job requires a lot of interaction both internally and externally Time Management: Good in a crisis – Manage several tasks at the same time Research Skills: New technology, new legislation
  20. 20. What is Management <ul><li>Baselining Network Performance </li></ul><ul><li>Performance Analysis </li></ul><ul><li>Logging </li></ul><ul><li>Documentation </li></ul><ul><li>Planning </li></ul><ul><li>Security Management </li></ul><ul><li>Monitoring Tools (RMON) </li></ul><ul><li>Management Tools (SNMP) </li></ul><ul><li>Predicative Maintenance </li></ul>
  21. 21. So what do they do? Network Manager - job description: - Measure throughput and latency - Develop monitoring systems - Perform predictive maintenance - Capacity planning - Quality of Service (QOS) - Fault tolerance - Security Management (proactive not reactive)
  22. 22. Summary Administration: Activities centre around installation and maintenance of the network both hardware and software – tend to be reactive in nature. Management: Proactive activities centre around logging , planning , supporting the network so that problems are identified before they become critical.

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