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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
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