Patent ID: 8274889
Filing Date: 2012-09-25
Classification: H04J,H04L

Abstract:
1. A method for determining data packet transmission times in an Ethernet protocol including: receiving a first data packet having a first data packet send time and a type of data payload each located in an EtherType field of a media access control (MAC) header of the first data packet, wherein the first data packet send time is a time the data packet is sent by a source transmitter; subtracting the first data packet send time from a first data packet receive time to yield a first data packet transmission time, wherein the first data packet receive time is the time the data packet is received by a destination receiver; comparing the first data packet transmission time to a third time; determining whether a difference between the first data packet transmission time and the third time exceeds a threshold value; and sending a notification of a transmission delay responsive to determining that the difference between the first data packet transmission time and the third time exceeds the threshold value.