DIRECT UPDATING OF NETWORK DELAY IN SYNCHRONIZATION PACKETS

摘要

A method includes receiving in a network element a packet, which includes a delay field that indicates an overall time delay accumulated by the packet until arriving at the network element. Upon receiving the packet, an interim value is substituted in the delay field. The interim value is indicative of a difference between the overall time delay and an arrival time of the packet at the network element. Before sending the packet from the network element, the overall time delay is updated in the delay field based on the interim value and on a departure time at which the packet is to exit the network element. The packet, including the updated overall time delay, is transmitted from the network element.

主权项

1. A method, comprising:
receiving in a network element a packet, which comprises a delay field that indicates an overall time delay accumulated by the packet until arriving at the network element; upon receiving the packet, substituting in the delay field an interim value, which is indicative of a difference between the overall time delay and an arrival time of the packet at the network element; before sending the packet from the network element, updating the overall time delay in the delay field based on the interim value and on a departure time at which the packet is to exit the network element; and transmitting the packet, comprising the updated overall time delay, from the network element.