LAGs using link or port-fair adapt-qos modes support hardware aggregate shapers; LAGs in distribute mode do not.
When a LAG spans multiple FPs, only one set of subscriber queues is created per FP (on the elected port), consequently there is only one hardware aggregate shaper created per FP for subscribers on a LAG. Egress subscriber traffic is hashed only to the active FP for that subscriber.
In these cases, the vport bandwidth distribution algorithm only manages the hardware aggregate shaper associated with the elected LAG port on the active FP. All hardware aggregate shapers not associated with the active FP have their oper PIRs set to their admin PIRs. This eliminates the need for the vport bandwidth distribution algorithm to manage the non-active hardware aggregate shapers and reduces the processing required.
It is recommended that for LAGs spanning different FPs, all participating FPs are configured to use hardware aggregate shapers. However, there are no checks to flag a mismatch of configuration between all member FPs.