The real DESCRIPTION field here is just the auto-generated stub "Cisco UCS fabric:FcVsanPortEp:locale managed object property", so it carries no real prose -- but the property name and its CucsFabricExternalEpLocale type tell you what it holds: It holds which side of the fabric UCS Manager considers this VSAN port endpoint to belong to -- internal (chassis-facing) versus external (uplink-facing). Since a single FC port endpoint that has been assigned to carry one specific VSAN's traffic, this value should consistently read "external" for this object; UCS Manager uses this classification internally to decide which set of validation and discovery rules apply to it. For this VSAN port endpoint the expected value is "external", flagging it as an uplink-side object rather than something facing the chassis backplane.