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Hierarchy Level


Explicitly enable or disable autonegotiation. Autonegotiation is enabled by default, and will autonegotiate the speed with the link partner. We recommend that you keep autonegotiation enabled for interfaces operating at 1G and 10G.

  • auto-negotiation—Enable autonegotiation.

  • no-auto-negotiation—Disable autonegotiation. When autonegotiation is disabled, you must explicitly configure link mode and speed options.

Required Privilege Level

interface—To view this statement in the configuration.interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 11.1.