Management VRF and Default VRF:
Each router has a management VRF and a default VRF:

Management VRF
The management VRF is for management purposes only. Only the mgmt 0 interface can be in the management VRF. The mgmt 0 interface cannot be assigned to another VRF. The mgmt 0 interface is shared among multiple VDCs. No routing protocols can run in the management VRF (static only).

Default VRF
All Layer 3 interfaces exist in the default VRF until they are assigned to another VRF. Routing protocols run in the default VRF context unless another VRF context is specified. The default VRF uses the default routing context for all show commands. The default VRF is similar to the global routing table concept in
Cisco IOS.