Cisco ISE Health Check and Policy Remediation Case Study

This case study details a comprehensive engagement involving a multinational mining corporation's upgrade of Cisco Identity Service Engine (ISE) and subsequent health check. The initiative evolved from a routine assessment into an extensive policy and access control remediation project. The collaboration spanned multiple regions, including North America, South America, and Europe, to address significant configuration and policy issues affecting over 60,000 endpoints. The methodology applied was use-case driven, focusing on auditing and visibility enhancements, policy modernization, and endpoint compliance improvements. Key actions included the creation of a global audit framework, the removal of outdated authentication methods, and the simplification of wireless access policies. The results demonstrated a reduction in policy complexity, improved security through certificate-based access controls, and enhanced operational stability. The findings also highlighted the importance of cross-team alignment and accountability in maintaining a secure access environment, ultimately leading to a more predictable and manageable network infrastructure.