Maintain an Infoblox-550 platform through a three-year Level 3 maintenance term. IB-MAIN-550-VIM-33 is a service entitlement associated with the 550 platform rather than a replacement appliance. It establishes the maintenance tier and coverage period for environments operating the supported Infoblox system. Level 3 maintenance identifies the support level attached to this entitlement. The three-year duration suits organizations maintaining the same Infoblox-550 platform across an established operating period, including DNS, DHCP, IP address management, and related network-services deployments where the appliance remains part of the service infrastructure. Select this entitlement when the supported system is an Infoblox-550 and the required maintenance term is three years at the Level 3 tier. The important distinction is the combination of platform association, maintenance level, and stated term: this SKU is tied to the 550 platform and does not represent a general maintenance entitlement for unrelated Infoblox products. Validate the installed platform and required support tier before assigning the entitlement.