Arista - traffic disruption during LAG reprogramming

No traffic disruption is expected during LAG reprogramming like adding/removing member ports. There is only one exception - on Sand(Arad/Jericho) platforms, if software Lag is enabled, traffic loss will be seen when # of Lag is changed from 1 to 2,  and vice versa. And software Lag can be disabled by knob - "platform sand lag hardware-only".