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CONFIGURATION MANAGEMENT

Network Configuration Management http://www.cisco.com/en/US/technologies/tk869/tk769/technologies_white_paper0900aecd806c0d88.html. CONFIGURATION MANAGEMENT. Best Practices for Configuration Management. Maintain a master device list.

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CONFIGURATION MANAGEMENT

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  1. Network Configuration Management http://www.cisco.com/en/US/technologies/tk869/tk769/technologies_white_paper0900aecd806c0d88.html CONFIGURATION MANAGEMENT

  2. Best Practices for Configuration Management • Maintain a master device list • Maintain correct credentials and manageability at 100 percent • Create relevance for users and management • Achieve differentiated management; "not all devices are equal" • Address people, processes, and technology, not just technology • Develop processes to work for your company • Commit resources; this is not a project, it is a system

  3. Defining configurationmanagement

  4. From 2nd week :Configuration Management • The goal of configuration management • to monitor network and system configuration information so that the effects on network operation of various versions of hardware and software elements can be tracked and managed.

  5. Configuration Management • Each network device has a variety of version information associated with it. An engineering workstation, for example, may be configured as follows: • Operating system, Version 3.2 • Ethernet interface, Version 5.4 • TCP/IP software, Version 2.0 • NetWare software, Version 4.1 • NFS software, Version 5.1 • Serial communications controller, Version 1.1 • X.25 software, Version 1.0 • SNMP software, Version 3.1

  6. Configuration Management • Configuration management (as subsystems of Network Management System) store configuration information in a database for easy access. • DATABASE • When a problem occurs, this database can be searched for clues that may help solve the problem. • DATA RETRIEVE

  7. What Is Configuration Management? Configuration management can be summarized as: • Device hardware and software inventory collection • Device software management • Device configuration collection, backup, viewing, archiving, comparison • Detection of changes to configuration, hardware, or software • Configuration change implementation to support change management

  8. Why Is Configuration Management Important? • Benefits : • 1. Reduced downtime through rapid change impact identification • 2. Productivity improvement for making configuration changes • 3. Helps ensure compliance for device configuration, software versions, and hardware 4. Quick impact determination of security alerts 5. Improved visibility and accountability at all levels • 6. Improved process and approval implementation

  9. Foundational and Fundamental Configuration management is the cornerstone of the network management system and of the network lifecycle cornerstone Configuration management knows what is in the network, and it provides control over network elements and linkage between the phases of the lifecycle.

  10. ASSOCIATION OF ROLES AND DEFINITION

  11. NETWORK LIFE CYCLE • Phases in the network lifecycle : Implement Operate Optimize Prepare • Plan Design

  12. the roles in network delivery and support (network services) : 1 Management • 2 Architecture 3 Delivery • 4 Support

  13. Lifecyles and Roles for Delivering and Supporting Network Services the flow of work through a network team and the demarcation in responsibilities between roles.

  14. Configuration management provides the implementation point for demarcation; • from this, processes can be developed that supports the network lifecycle and the necessary roles.

  15. The requirements for configuration management are: • 1. Collect network inventory, including chassis and modules as well as serial numbers • 2. Report on collected network inventory • 3. Collect device configurations • 4. Keep multiple versions of device configurations The requirements for configuration management are: • 5. Allow comparison between the multiple versions of device configurations • 6. Detect changes in device configurations (event or polling based) • 7. Determine which user made changes to device configurations • 8. Report on configuration changes

  16. 9. Allow configuration changes to be batched and scheduled • 10. Report on existing software versions deployed on devices • • • • • • • • • 11. Keep a repository of device software versions • 12. Support upgrading of device software The requirements for configuration management are: • 13. Audit configuration to help ensure compliance • 14. Search device configurations, software, and hardware • 15. Store or link to static documentation and diagrams • 16. Support the approval processes and workflows

  17. Asset Management • Purchase date • Purchase price If the configuration management system needs to support asset management, then the additional requirements needed to support business accounting processes, such as depreciation, are: • Asset number • Purchasing details

  18. Carrier Service Management •Service number • • • • • • •Carrier (telco) •Contract start date If the configuration management system needs to support carrier service management, then additional requirements that support carrier service management and contract renewal are needed. Some of these requirements are: •Contract period •Currency •Cost per month

  19. Change Impact Policy Change Impact The change impact is the possible impact the change can have on the production environment

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