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Configuration Management: Best Practices White
Paper
Document ID: 15111
Contents
Introduction
 High−Level Process Flow for Configuration Management
 Create Standards
      Software Version Control and Management
      IP Addressing Standards and Management
      Naming Conventions and DNS/DHCP Assignments
      Standard Configuration and Descriptors
      Configuration Upgrade Procedures
      Solution Templates
 Maintain Documentation
      Current Device, Link, and End−User Inventory
      Configuration Version Control System
      TACACS Configuration Log
      Network Topology Documentation
 Validate and Audit Standards
      Configuration Integrity Checks
      Device, Protocol, and Media Audits
      Standards and Documentation Review
 Related Information
Introduction
Configuration management is a collection of processes and tools that promote network consistency, track
network change, and provide up to date network documentation and visibility. By building and maintaining
configuration management best−practices, you can expect several benefits such as improved network
availability and lower costs. These include:
Lower support costs due to a decrease in reactive support issues.
• 
Lower network costs due to device, circuit, and user tracking tools and processes that identify unused
network components.
• 
Improved network availability due to a decrease in reactive support costs and improved time to
resolve problems.
• 
We have seen the following issues resulting from a lack of configuration management:
Inability to determine user impact from network changes
• 
Increased reactive support issues and lower availability
• 
Increased time to resolve problems
• 
Higher network costs due to unused network components
• 
This best−practice document provides a process flowchart for implementing a successful configuration
management plan. We'll look at the following steps in detail: create standards, maintain documentation, and
validate and audit standards.