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CIT 443: Enterprise Network Management

CIT 443: Enterprise Network Management. FCAPS: Configuration Management. Definition of Configuration Management.

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CIT 443: Enterprise Network Management

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  1. CIT 443: Enterprise Network Management FCAPS: Configuration Management

  2. Definition ofConfiguration Management Configuration management is the process of obtaining functional data from each network device, storing and documenting that data, and subsequently utilizing that data to manage the operations of all network devices

  3. Why Configuration Management? • Systems are as complex as they have ever been • Networked systems must be configured properly in order to function properly • Usually means the default configuration is not sufficient • Managing how these devices are configured and documenting these configurations is extremely important

  4. Configuration Management Activities • Gather network configuration information – How? • Store the data in redundant locations • Why? • Use configuration information to identify & make necessary configuration changes • Produce configuration reports • non-compliance reports

  5. Network Design Aspects of CCM • Initializing the network • Design and Implementation • Maintaining, adding and updating the relationships between components • Graceful shut-down of the network • Others?

  6. Configuration Management Functions • Network Topology Control • Network Provisioning • Progress of New Equipment Installations • Progress of New Service Configurations • Inventory Management • Version Control • Device Configuration • Firmware Version • Configuration Control • Local • Remote • Network Documentation!

  7. Expectations ofConfiguration Management Users: • Informed of changes in configuration • Scheduled downtime & periodic reports • Rapid response/resolution of problems Network Engineers: • Predefined configuration attributes • Standardized protocols and interoperability Network Administrators: • Change connectivity of network as required • Users are unable to change configurations

  8. ConfigurationManagement Information Network Maps: • Documents physical & logical network design • Should be used as “background” for a fault management system • Other Information? Software Inventories: • Licensing Information • Support Contract/Contact Information • Other Information? Hardware Inventories: • Make/Model • Serial Number • Property Accounting Tag Number • Support Contract/Contact Information • Other Information?

  9. ConfigurationManagement Benefits • Rapid access to vital configuration data • Disaster Recovery • Improved Fault Resolution • Framework for updating connectivity/communications between devices • Quickly determine how many devices of a certain type of are on the network • Bug Fixes • Upgrades/Updates • Other Benefits?

  10. Configuration Management:Manual Device Discovery • Time consuming and inaccurate • Missing nodes • Will you be current when you’re done? • Touch every node and collect the data • New devices? • Geographically disparate systems? • Large networks?

  11. Configuration Management:Automatic Device Discovery • Passively listen for stations • Not as intrusive to users or BW intensive • Incomplete and least accurate of automated methods • Likely more accurate than manual methods • Passively listen to switched connections? • Security Risk?

  12. Configuration Management:Automatic Device Discovery • Ping and query all addresses within range • Potentially Disruptive • BW Intensive • Find a single device then use a management protocol to ask it who it has talked to recently • Nmap/Nessus/Netstat • Arpwatch

  13. Configuration Management via SNMP SNMP “Public” Community: • Gather information about the current network environment • Read-Only • Password Required/Often Disabled • Default is “public” SNMP “Private” Community: • Gather information about the current network environment AND make changes • Read-Write • Password Required – Change from Default!

  14. Other Relevant Protocols • Telnet/SSH • TFTP/FTP • CORBA • TL1 • SS7 • Others?

  15. Configuration Management –Network Elements • PBX • Hubs • Routers • Switches • Servers • Workstations • Firewalls • Wireless Access Points • Printers • Power Management Systems • Network SCADA Systems • Temperature Management Systems (HVAC) • Physical Security Systems • Home Appliances? • Others?

  16. Key Players • HP (OpenView) • Cisco (CiscoWorks) • IBM (Tivoli) • SolarWinds • AlterPoint (Device Authority Suite) • Voyence (VoyenceControl!) • SpectrumSoft (WNMS) • Micro2000 (RemoteScope) • Compuware (Vantage Solution Suite) • Others?

  17. Industry Trends • Automated Configuration Backup • Automated Configuration Updates • Redundant Configuration Management Systems • Mirror Sites and Redundant NOC(s) • Configuration Replication – “ghosting” • Others?

  18. Topics for Further Investigation • Configuration Management Protocols for Telecomm Networks • Configuration Management System Architectures • Disaster Recovery Planning – Best Practices and Lessons Learned • Corporate Implementations of Configuration Management Systems • Change Management Policies, Practices and Enforcement • IT Infrastructure Library & Service Management

  19. Reading • There are two Change & Configuration Management (CCM) Whitepapers posted to the course website. • Read them for next time

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