Chapter 14Network Management

• Business Aspects

• Architectures

• Technology

Business Aspects

• Quality of service

• Cost containment issues

• Outsourcing

• Flexibility

Cost Containment Issues

• Inventory

• Support costs

• Consolidate and centralize

• Process redesign

• Standardize

Outsourcing

• Objectives– Cost-effective– Secure– International network support personnel

• Success factors– Identify process– Select right outsourceing– Management outsourcing

Flexibility

• Objectives– Reasonable cost– Meet changing business opportunities

• Success factors– Remove proprietary hardware and software– Adopt open protocols and off-the-shelf

hardware & software technology– Adopt open APIs & module management

package

Architectures

• System Administration

• Enterprise Network Management

• ISO Management Framework

• Consolidated service desk

System Administration

• Server management

• Help desk management

• Configuration management

• Desktop management

• LAN management

• Distributed application management

Server Management

• Diagnose & fix hardware problems

• Diagnose & fix software problems

• Capacity planning & performance monitoring

• Remote configuration

• Report generation

Help Desk Management

• Tool: computer telephony integration– Automatic call distributors & interactive voice

response units– Knowledge base– Search engine

• Functions– Problem solving– Reporting

• Method: three tiers

Configuration Management

• Objective: single sign on

• Policy-based management tools:– User access right– Desktop start-up applications– Enforce virus checking or metering– Facilitate changes– Prevent unauthorized software

Desktop Management

• Architecture & protocol– Desktop Management Task Force (DMTF)

– Desktop management interface (DMI)

– Management information format (MIF)

• Functions– Hardware & software management

– Software distribution

– License metering

– Server monitoring

– Web server monitoring

– Network monitoring

– Virus protection

– Help desk support

– Remote control management

– Reporting

Enterprise Network Management

• Architecture & protocol

• Software type

• Functions

• Vendor

• Other tools

Architecture & Protocol

• Simple network management protocol (SNMP): centralized approach– Agents – Management information base (MIB) using

objects– Remote network monitoring MIB (RMON

MIB)

• Distributed device manager using distributed network probes

Architecture & Protocol

• Web-based enterprise management (WBEM) by IETF– Hypermedia management protocol (HMMP)– Hypermedia management schema (HMMS)– Hypermedia object manager (HMOM)

• Common information model (CIM) by DMTF– Modified object forma (MOF)

Software Type

• Point product

• Frameworks

• Integrated suites

Functions

• Track distributed applications

• Reporting

• Perform repetitive system management tasks

• Improve application performance

Vendors

• HP Openvire

• IBM System View

• Sun Soft Solstice Enterprise Manager

Other tools

• Network analyzer

• Monitoring

• Simulation

• Auditing

Network Analyzer• Purpose

– Traffic analysis

• Types– Software

– Hardware

– Combination

• Selection consideration– OS compatibility

– Database compatibility

– Network size and architecture

– Protocol & application support

– User interface

– Report

Monitoring

• Network baselining tools

• Performance reporting

Simulation

• Network modeling tools

• What-if analysis for bottlenecks– Current system– New application or configuration– Reproduce problems

Simulation Selection Criteria

• Network type

• Network scope

• Network service

• Network device

• Network protocol

• Traffic attributes

• User interface

• Report

Auditing

• Log of file access

• Log of file, application, configuration changes

• Log of login & logout

• Flexibility: no. of user & file

• Security

• Report

ISO Management Framework

• Fault management

• Configuration management

• Performance management

• Security management

• Accounting management

Assignment

• Review chapters 8-12

• Prepare exam