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Hierarchy Level


Enable a dedicated management virtual routing and forwarding (VRF) instance. The name of the dedicated management instance is reserved and hardcoded as mgmt_junos; you cannot configure any other routing instance by the name mgmt_junos.

The management Ethernet interface (usually named fxp0 or em0) provides the out-of-band management network for the router. There is no clear separation between either out-of-band management traffic and in-band protocol control traffic, or user traffic at the routing-instance or routing table level. The management-instance configuration statement confines the management interface in the dedicated management instance mgmt_junos, and it enables an administrative routing table dedicated to management tasks for the network device.

For more information about configuring management-instance and the mgmt_junos routing instance, see Management Interface in a Non-Default Instance.


This command has no options.

Required Privilege Level

system—To view this statement in the configuration.

system-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 17.3R1.