Abstract: Some embodiments of the present disclosure relate to methods, devices and computer-readable media for measuring traffic hit time during path switch. The method performed at a first device includes: sending, to a second device, operation administration and maintenance (OAM) frames with continuous sequence numbers; receiving from the second device response OAM frames; determining traffic hit start time and traffic hit stop time based on the received OAM frames; detecting an occurrence of the path switch, and determining that the path switch is completed before the traffic hit stop time; and in response to determining that the path switch is completed before the traffic hit stop time, calculating traffic hit time based at least on the traffic hit start time and the traffic hit stop time.