Data Communications - Chapter twelve
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Data Communications - Chapter twelve

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    Data Communications - Chapter twelve Data Communications - Chapter twelve Presentation Transcript

    • Network Management
      • After studying this Chapter you should:
        • Describe what is required to manage the day-to-day operations of networks
        • Explain network management organization
        • Describe
          • configuration management
          • performance and fault management
          • cost management
        • Describe the role and functions of network management software and hardware tools
    • Introduction
      • Network Management - the process of operating, monitoring and controlling the network to ensure it operates as intended and provides value to its users.
        • CATER to the needs of the user
          • Consistent
          • Accurate
          • Timely
          • Economically feasible
          • Relevant
    • What are the primary network management functions ?
      • Design and implement new networks and network upgrades
      • Manage the day-to-day operation of existing networks
    • What is the importance of network management?
      • Communications networks contribute to the bottom line
      • Communications networks can be strategic competitive tools
      • Effective network management results in availability, reliability, and efficiency
      • Network management is both the brain and heart of the corporate communications network
      To the corporation...
    • What is the importance of network management?
      • Communications network management is a large and rapidly expanding business
      • Network management offerings is a key factor when firms make decisions including:
        • public versus private network
        • carrier-based versus CPE -based ( C ustomer P remises E quipment)
      • Reputation as a good network management provider helps sell other products/services
      To the network/product/service provider...
    • What are the network management needs ?
      • Network management should contribute to the bottom line :
        • Decrease expense
        • Increase revenue
        • Increase productivity
        • Improve service
        • Provide image as a leading edge company
      • Network management should provide the company with a strategic competitive tool
      As Perceived by the Corporate Executive...
    • What are the network management needs ?
      • Provide good performance
      • Be easy to operate and correct problems
      • Be flexible and provide customer control
      • Work in a multi-supplier environment
      • Be well utilized and adaptive for growth
      • Provide for management reporting capabilities
      As Perceived by the Communications Manager...
    • What are the network management needs ?
      • Provide good performance
      • Be transparent and easy to use
      • Provide for a one-stop, responsive help desk
      • Be cost effective
      As Perceived by the End User...
    • The Shift to LANs and the Web
      • 60% of all processing power is done on LANs
      • Growing 40% per year
      • Web services growing even more dramatically
      • Integration
        • mixing technologies & protocols - requires expertise and equipment
        • cultural - management and user
    • Integrating LANs, WANs & the Web
      • Communication and Cooperation
        • shift in power
        • organizational impact
        • single communications and networking goal
      • Data communications network organization
        • written charter
          • purpose
          • operational philosophy
          • long-range goals
        • Goals policies procedures
    • Integrating Voice and Data
      • Why
        • changing communications technologies
        • high cost of maintaining separate facilities
        • low efficiency and productivity
      • Roadblocks
        • loss of jobs
        • loss of power
        • political pressures
    • Network Management Functions Less More Real-time Orientation Corporate Network Management Admini- stration Mgmt Capacity Mgmt Provisioning Mgmt Accounting Mgmt Perfor- mance Mgmt Configura- tion Mgmt Fault Mgmt Security Mgmt
      • Equipment Inventory
      • Corporate Directory
      • Database Administration
      • Management Reports
      Network Management Functions Corporate Network Management Admini- stration Mgmt Capacity Mgmt Provisioning Mgmt Accounting Mgmt Perfor- mance Mgmt Configura- tion Mgmt Fault Mgmt Security Mgmt
      • Demand Forecasting
      • Network Design (Chapter 10)
      • Network Engineering (Chapter 10)
      Network Management Functions Corporate Network Management Admini- stration Mgmt Capacity Mgmt Provisioning Mgmt Accounting Mgmt Perfor- mance Mgmt Configura- tion Mgmt Fault Mgmt Security Mgmt
      • Ordering
      • Installation (Moves, Adds, Changes)
      • Pre-service Testing
      Network Management Functions Corporate Network Management Admini- stration Mgmt Capacity Mgmt Provisioning Mgmt Accounting Mgmt Perfor- mance Mgmt Configura- tion Mgmt Fault Mgmt Security Mgmt
      • Traffic Usage Recording
      • Billing
      • Cost Management
      Network Management Functions Corporate Network Management Admini- stration Mgmt Capacity Mgmt Provisioning Mgmt Accounting Mgmt Perfor- mance Mgmt Configura- tion Mgmt Fault Mgmt Security Mgmt
    • Cost Management
      • Control of continually escalating costs
      • Network management staff
        • systems management
        • end-user support
      • WAN circuits
      • Hardware
        • client computers
        • network devices
      • Application Software
    • Network Management Functions Corporate Network Management Admini- stration Mgmt Capacity Mgmt Provisioning Mgmt Accounting Mgmt Perfor- mance Mgmt Configura- tion Mgmt Fault Mgmt Security Mgmt
      • Delays
      • Blocking
      • Discards
      • Errors
      • Availability
      • Reliability
    • Performance Management
      • Performance management - ensuring the network is operating as efficiently as possible
      • Network monitoring - keeping track of the operation of various network circuits and devices for performance and fault discovery
      • Goes hand-in-hand with Fault Management
    • Network Monitoring
      • Network management software
        • operational statistics
        • physical network parameters
          • network failures
          • devices malfunctioning
          • devices not responding
        • logical network parameters
          • performance measures
          • response times
          • traffic on the circuit
    • Network Management Tools
      • Network management software
        • Previously discussed
      • Network management hardware
        • Breakout box - voltage meter
        • Fiber light meter
        • Cable Analyzer
        • Protocol Analyzer/Data Line Monitor
        • Automated Test Equipment
      • Network Reconfiguration
      • Bandwidth Reallocation
      • Traffic Rerouting
      Network Management Functions Corporate Network Management Admini- stration Mgmt Capacity Mgmt Provisioning Mgmt Accounting Mgmt Perfor- mance Mgmt Configura- tion Mgmt Fault Mgmt Security Mgmt
    • Configuration Management
      • Managing the network’s hardware and software
        • documentation
        • hardware and software upgrades
        • network diagrams and maps
        • circuit diagrams
        • software licenses
        • hardware and software manuals
        • vendor contracts and agreements
    • Configuration Management.
      • Managing the network’s usage
        • user or group accounts
        • user or group privileges
        • user login scripts
        • directory space
    • Network Management Functions
      • Testing
      • Trouble Detection
      • Trouble Analysis
      • Trouble Resolution
      • Trouble Logging
      Corporate Network Management Admini- stration Mgmt Capacity Mgmt Provisioning Mgmt Accounting Mgmt Perfor- mance Mgmt Configura- tion Mgmt Fault Mgmt Security Mgmt
    • Fault Management
      • Fault management - preventing, detecting and correcting any faults in the network circuits, hardware, and software
    • Failure Control
      • Help desk function
        • human intervention
        • problem reporting
        • authority to call other support or vendors as necessary
        • problem tracking
        • problem statistics
        • troubleshooting
        • chronic device failures
    • Testing and Problem Fix
      • Establish test and validity criteria
      • Coordinate and administer the various tests
      • Quick diagnoses
      • Maintain a variety of testing equipment
      • Document fix procedure
      • Report on problem resolution time
      • Record down time and network availability statistics
    • End User Support
      • Solving whatever problems users encounter while using the network
        • Resolving software problems
          • lack of user knowledge
          • incompatibility between software packages
        • Security issues
          • incorrect or forgotten passwords
          • rights to directories
    • End User Support
      • Several levels of support
        • help desk
          • general problems
          • 75 - 85% solved at this level
        • second level
          • specialized skills
        • third level
          • specialists who test and create solutions
          • advanced problem solving
      • End User Training
        • on going process
      • Chapter 12
      Network Management Functions Corporate Network Management Admini- stration Mgmt Capacity Mgmt Provisioning Mgmt Accounting Mgmt Perfor- mance Mgmt Configura- tion Mgmt Fault Mgmt Security Mgmt