Method and system for compensated time stamping for time-sensitive network communications

摘要

Aspects of a method and system for compensated time stamping for time-sensitive network communications are provided. In this regard, one or more timestamps generated in an OSI layer above the physical layer may be adjusted based on parameters associated with an amount of time in which data traverses a PHY of the network device. Communications of the network device may be managed based on the adjusted one or more timestamps. The parameters may comprise one or more of: average ingress PHY traversal time, average egress PHY traversal time, variance of ingress PHY traversal time, and variance of egress PHY traversal time. One or more network links coupled to the network device may be characterized based on the one or more adjusted timestamps. The parameters may be stored in one or more registers within a PHY of the network device.

主权项

1. A method for networking, the method comprising:
performing by one or more circuits in a network device, one or more functions comprising: storing, in one or more registers within a physical layer device of said network device, determined parameters associated with a traversal time of data in a single direction between a first end of said physical layer device associated with a first interface of said physical layer device with a higher layer and a second end of said physical layer device associated with a second interface of said physical layer device physical media; and adjusting one or more timestamps generated in a layer above said physical layer device based on said stored determined parameters that are retrieved from said one or more registers within said physical layer device of said network device, said adjusting accounting for said traversal time of data in said single direction through said physical layer device due to operation of said physical layer device in an energy saving mode.