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reference-bandwidth (Protocols OSPF)


Hierarchy Level


Set the reference bandwidth used in calculating the default interface cost. The cost is calculated using the following formula:


reference-bandwidth—Reference bandwidth, in bits per second.

  • Range: 9600 through 4,000,000,000,000 bits

  • Default: 100 Mbps (100,000,000 bits)


The default behavior is to use the reference-bandwidth value to calculate the cost of OSPF interfaces. You can override this behavior for any OSPF interface by configuring a specific cost with the metric statement.

Required Privilege Level

routing—To view this statement in the configuration.

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

Release Information

Statement introduced before Junos OS Release 7.4.

Support for the realm statement introduced in Junos OS Release 9.2.

Support for the realm statement introduced in Junos OS Release 9.2 for EX Series switches.