Elvin, can you check the following outputs when the issue occurs and determine whether the ports are active/ready, if there are any link up transitions, the show log output tells us if any ports in the LAG went down to either a local or remote fault, or any errors under the LACP counters output?
This will help us isolate whether if it is a port going down or if the issue is with the LAG.
# show sharing Load Sharing Monitor Config Current Agg Min Ld Share Dist Ld Share Agg Link Link Up Master Master Control Active Algorithm Flags Group Mbr State Transitions ================================================================================ 1 LACP 1 L2 A 1 Y A 1 L2 2 Y A 0 ================================================================================ Link State: A-Active, D-Disabled, R-Ready, NP-Port not present, L-Loopback
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# show lacp counters LACP PDUs dropped on non-LACP ports : 0 LACP Bulk checkpointed msgs sent : 0 LACP Bulk checkpointed msgs recv : 0 LACP PDUs checkpointed sent : 0 LACP PDUs checkpointed recv : 0 Lag Member Rx Rx Drop Rx Drop Rx Drop Tx Tx Group Port Ok PDU Err Not Up Same MAC Sent Ok Xmit Err -------------------------------------------------------------------------------- 21 21 2 0 0 0 2 0 22 2 0 0 0 2 0 ================================================================================The show log will help with any port down/up and sharing transitions.