It may mention it in the docs or video but in our experience, it is best to configure the downstream LACP ports first then the upstream to avoid losing connection. Otherwise, you have to physically move the cable to a different port to get the switch back online to take its config. Have other ports configured as backups in case you need to do this.
Adam R MS | CISSP, CISM, VCP, MCITP, CCNP, ITILv3, CMNO If this was helpful click the Kudo button below If my reply solved your issue, please mark it as a solution.
I already have stacked the 2 ms250 via the stacking cable. Need to implement lacp for increasing throughtput and also incase the stack loose connectivity we have a backup connectvity on both of the switch. Is this the best practice or any recommendation?