COMM3D Network Administration and Management

1
COMM3DNetwork Administration and Management

• Module leader Dr Chris Stokoe
• Ext 3277 Room 224F
• Chris.Stokoe_at_sunderland.ac.uk
• http//osiris.sunderland.ac.uk/cs0cst/

2
COMM3DNetwork Administration and Management

• Lecture 1
• Module Introduction
• and
• Administration vs. Management

3
COMM3D An Introduction

• Objectives
• 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.
• Themes
• Two key elements
• Network Administration The design,
  implementation and administration of network
  systems and services.
• Network Management The strategies typically
  used to proactively ensure the availability and
  optimality of network systems and services.

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
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
Module Assessment
Assignment 1 (3rd November - 7th December ) An
individual assignment requiring students to write
a 3000 word paper addressing various aspects of
Network Administration and Security. Assignment
2 (14th 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
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 _at_
http//osiris.sund.ac.uk/cs0cst/comm3d/ To
access them log on using your U. of Sunderland ID.
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
dont understand something then ASK! Do try to
read the course text books. If you miss a
lecture then borrow someone elses notes. Dont
leave assignments to the last minute.
9
COMM3DNetwork Administration and Management

• Lecture 1 Administration vs. Management

10
Objectives
In todays 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
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
What is Administration?

• Network Design and Implementation
• Installing / replacing / upgrading hardware
• Installing / replacing / upgrading Software
• Maintenance (chkdsk, Virus Scan)
• Backups Protecting Data
• Upgrading / reinstalling O/S
• Cabling
• For home PC users this is DIY stuff!

13
So what do they do?

• Systems Admin - job description
• - Creation / maintenance of user accounts, groups
  
• - Maintenance of filing systems
• - Maintenance of Services (Software and Hardware)
• - Automation of systems (through cron, etc.)
• - Disaster recovery planning (Backups,
  Redundancy)
• - Operating System - Installation and
  maintenance
• - Business application - Installation and
  maintenance
• - Management
• Security
• Performance monitoring
• Predictive Maintenance

14
Typical Jobs
15
Adhoc Jobs
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
Internal Liaisons
18
External Liaisons
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
What is Management

• Baselining Network Performance
• Performance Analysis
• Logging
• Documentation
• Planning
• Security Management
• Monitoring Tools (RMON)
• Management Tools (SNMP)
• Predicative Maintenance

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
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.