Maintain support coverage associated with a Cisco Fabric Interconnect 6536 operating in a UCS Manager environment. CON-L1NBD-UCSFCI6U is a Cisco service ordering code tied to that fabric-interconnect platform, rather than a separately installed switch, chassis, interface module, or power component. It identifies the service relationship for an existing 6536 deployment. Fabric Interconnect 6536 systems provide the network and management connection point for Cisco UCS Manager domains. This service SKU is associated with that platform reference, making the 6536 and UCSM designation the key identifiers to match against the installed environment. The service code does not add Ethernet ports, fabric capacity, rack space, or physical hardware to the deployment. Use CON-L1NBD-UCSFCI6U where the covered platform is a Cisco Fabric Interconnect 6536 for UCSM. Keep the service code distinct from the installed fabric-interconnect hardware when documenting the environment, since the code represents associated service coverage rather than the appliance itself. Service duration, support scope, and response conditions depend on the specific entitlement attached to the code.