Keep large Infoblox deployments supported with a 5 year L3 maintenance upgrade sized for 100,000 IPs. This service is intended for organizations that depend on stable network services and need a long support horizon to match infrastructure planning, procurement cycles, and operational risk management. L3 maintenance matters when issues require deeper product expertise and direct vendor escalation. In environments managing high IP counts, support quality affects more than ticket closure times — it affects service continuity, change confidence, and the ability to keep DNS, DHCP, and IPAM operations aligned with business demands. This maintenance upgrade is a practical choice for enterprise teams that want to protect their investment in Infoblox while avoiding short-term support gaps. It gives procurement and operations a defined service term, a clear support path, and the confidence that the platform remains covered as the environment scales.