Adaptive load balancing (ALB) for ECMP

You can use the adaptive load balancing (ALB) feature for ECMP to address traffic distribution imbalances by monitoring packet and byte counts for each hash bucket. This feature employs a feedback mechanism to detect and correct overload conditions, ensuring fair traffic distribution across links.

Use the adaptive CLI option at the [edit policy-options policy-statement policy then load-balance] hierachy level to enable ALB. To adjust the tolerance percentage, use the ecmp-alb tolerance percentage CLI option at the [edit chassis] hierarchy level.