Description

in scaled LAGs scenario (65 LAGs) with ALB (Adaptive LoadBalancing) enabled , LAG interfaces took long time (~8 mins) to move to Up state

Symptoms

Significant delay will be noticed when try to activate scaled LAG interfaces using one commit . issue is related to some checks related to ALB on PFE. this leads to significant delay in the programming the hardware . this delay can reach to ~8 mins in some cases

Solution

Customer need to have the fix of PR1777759 as some enhancements have been added to ALB checks in PFE to speed up the programming of LAG interfaces

as workaround , customer need to disable ALB using the below command
 

deactivate interfaces ae* aggregated-ether-options load-balance

 

Modification History

2024-04-08 : Article Created