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Hierarchy Level


Enable adaptive load balancing for equal-cost multipath (ECMP) next hops.


The ecmp-alb statement can be enabled only when the [edit chassis network-services enhanced-ip] statement is configured.

Starting in Junos OS Release 20.1R1, you can configure adaptive load balancing for ECMP next hops on multiple Packet Forwarding Engines on the same line card for even distribution of the traffic and redundancy.


apply-groups—Specify the groups from which to inherit configuration data.

apply-groups-except—Specify the groups from which configuration data should not be inherited.

tolerance—Specify the adaptive tolerance in percentage.

  • Default: 20%.

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 14.2.