Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?




Hierarchy Level

Original CLI

ELS CLI for Platforms that Support FCoE


The beacon-period configuration statement is in a different hierarchy on the original CLI than on the Enhanced Layer 2 Software (ELS) CLI.


Set the interval between periodic beacons. Beacons perform virtual link maintenance for VN_Ports in a way that is similar to FIP keepalive advertisements.

The ENode sends periodic beacons every 90 seconds on behalf of the VN_Port. Each received beacon resets the session timer for the virtual link connection to the other VN_Port. If the FCF does not receive a beacon before the beacon timer expires, the VN_Port is considered as “down” and the virtual link is terminated. The beacon timer expires in 2.5 times the configured beacon timer value.


milliseconds—Time in milliseconds between beacons.

  • Range: 250 through 90000 milliseconds

  • Default: 8000 milliseconds

Required Privilege Level

storage—To view this statement in the—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 12.2.

Statement introduced for the ELS CLI in Junos OS Release 13.2 for the QFX Series.