Keep Infoblox 250-100 upgrade projects on a controlled path with 3 years of Level 3 maintenance. This service is designed for organizations that need sustained access to advanced support during planning, execution, and post-change stabilization. When DNS infrastructure is central to application availability, upgrade support has to do more than answer basic questions. It needs to help resolve complex product behavior, compatibility concerns, and change-related issues with the depth only Level 3 coverage can provide. That makes this service a strong fit for teams protecting service continuity across multi-year operational cycles. The longer maintenance term also helps procurement and infrastructure leaders reduce renewal churn while keeping support aligned to the platform in use. For environments where downtime, misconfiguration, or delayed escalation can affect many downstream systems, this service adds the technical backing needed to move upgrades forward with greater confidence.