Which of the following is a characteristic of a management VRF?
- All routing protocols run there by default.
- It is similar to a router’s global routing table.
- The mgmt 0 interface cannot be assigned to another VRF.
- All Layer 3 interfaces exist there by default.
The mgmt 0 interface cannot be assigned to a virtual routing and forwarding (VRF) instance other than the management VRF. By default, a Cisco router is configured with two VRFs: the management VRF and the default VRF. The management VRF is used only for management, includes only the mgmt 0 interface, and uses only static routing.
VRFs are used to logically separate Open Systems Interconnection (OSI) networking model Layer 3 networks. Therefore, it is possible to have overlapping Internet Protocol version 4 (IPv4) or Internet Protocol version 6 (IPv6) addresses in environments that contain multiple tenants. However, an interface that has been assigned to a given VRF cannot be simultaneously assigned to another VRF. The address space, routing process, and forwarding table that are used within a VRF are local to that VRF.
Only the mgmt 0 interface exists in the management VRF by default. A Cisco router’s default VRF includes all Layer 3 interfaces until you assign those interfaces to another VRF. In addition, the mgmt 0 interface is shared among virtual device contexts (VDCGs).
No routing protocols are allowed to run in the management VRF. A Cisco router’s default VRF, on the other hand, runs any routing protocols that are configured unless those routing protocols are assigned to another VRF.
The management VRF is not similar to a Cisco router’s global routing table. A Cisco router’s default VRF, on the other hand, is similar to the router’s global routing table. In addition, all show and exec commands that are issued in the default VRF apply to the default routing context.