In Chapter 4, Configuring Cisco UCS Using UCS Manager, we discussed and configured the global Chassis/FEX Discovery Policy, which dictates the number of physical connections from the UCS chassis expected by the UCS Manager software to acknowledge the chassis. UCS Manager generates an error if IOM connectivity with the Fabric Interconnect is not compliant with the global Chassis/FEX Discovery Policy.

The following screenshot shows a fabric-unsupported-conn error due to a misconfigured chassis discovery policy. In order to rectify this issue, configure the global Chassis/FEX Discovery Policy according to the number of physical links (one, two, four, or eight) connected from the IOM to the Fabric Interconnect using the steps provided in Chapter 4, Configuring Cisco UCS Using UCS Manager, and re-acknowledge the chassis.