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Hierarchy Level


Set the retransmit timer for neighbor discovery messages. Whenever the state of a neighbor during the Neighbor Discovery (ND) process changes from stale to probe, the value of the retransmit timer controls the interval between the neighbor solicitation messages that are sent out. Also, the retransmit timer controls the time for which the neighbor is in the probe state. A device sends a neighbor solicitation message after the specified number of milliseconds in the nd-retransmit-timer statement, until a reachability confirmation is received. If a solicited neighbor advertisement (NA) message is not received from the neighbor in response to the soliciation message sent from the device, the neighbor remains in the probe state.


milliseconds—Retransmission frequency.

  • Default: 0 milliseconds

Required Privilege Level

routing—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 15.1.