Extend support coverage for Infoblox 1550-A NS1 upgrade environments with a 3-year L3+ maintenance term built for production infrastructure. This service is intended for teams that need dependable escalation paths, sustained vendor-backed assistance, and continuity across the maintenance lifecycle. For organizations running DNS, DHCP, and IP address management at scale, support gaps can create unnecessary operational risk. L3+ maintenance helps keep the platform under active coverage so issues can be routed through the appropriate support channels when speed and precision matter most. This maintenance term is a practical fit for enterprises standardizing on Infoblox and planning around multi-year refresh cycles. It supports budget predictability while helping protect the value of the underlying deployment, especially where uptime, change control, and service accountability are non-negotiable.