Network clock synchronization floating window and window delineation
First Claim
1. A network component comprising:
- a memory coupled to a processor, wherein the memory comprises instructions that cause the processor to;
initiate a synchronization window; and
promote the transmission of a frame comprising a start of frame delimiter (SFD) and a plurality of timeslots,wherein the SFD delineates a beginning of the frame,wherein the synchronization window is initiated using a signal not located within the frame,wherein the frame is floating within the synchronization window, andwherein the beginning of the SFD is not the same as the beginning of the synchronization window.
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Abstract
A network component comprising at least one processor configured to implement a method comprising initiating a synchronization window, and promoting the transmission of a frame comprising a control symbol, wherein the control symbol delineates a beginning of the frame, and wherein the control symbol is offset from the beginning of the synchronization window. Also disclosed is a system comprising an upstream node in communication with a downstream node, wherein the upstream node transmits a data stream comprising a plurality of frames to the downstream node, wherein the data stream is organized into a plurality of synchronization windows, and wherein the frames float within the synchronization windows. Included is a method comprising transmitting an Ethernet data stream comprising an Ethernet control symbol, wherein the Ethernet control symbol is transmitted within a synchronization window and delineates a start of a packet within the synchronization window.
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Citations
20 Claims
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1. A network component comprising:
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a memory coupled to a processor, wherein the memory comprises instructions that cause the processor to; initiate a synchronization window; and promote the transmission of a frame comprising a start of frame delimiter (SFD) and a plurality of timeslots, wherein the SFD delineates a beginning of the frame, wherein the synchronization window is initiated using a signal not located within the frame, wherein the frame is floating within the synchronization window, and wherein the beginning of the SFD is not the same as the beginning of the synchronization window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A network component comprising:
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a transmitting interface configured to transmit a data frame; a memory; and a processor coupled to the memory and the transmitting interface, wherein the memory comprises instructions that cause the processor to; generate a first synchronization signal that indicates the start of a first synchronization window; and transmit the data frame via the transmitting interface, wherein the data frame comprises a start of frame delimiter (SFD) that indicates the start of the data frame and a plurality of timeslots, wherein the first synchronization signal is generated externally of the data frame, wherein the data frame is floating within the synchronization window, and wherein the transmission of the SFD and generation of the first synchronization signal do not occur at the same time. - View Dependent Claims (15, 16, 17)
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18. A method for initiating and synchronizing at least one synchronization window between two nodes, wherein the method comprises:
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initiating a synchronization window that comprises a start time and an end time by generating a synchronization signal; transmitting a first frame that comprises a start of frame delimiter (SFD) within the synchronization window, wherein the SFD indicates a start for transmitting the first frame, wherein the synchronization window is initiated using an internal signal generated outside of the first frame, wherein the first frame is floating within the synchronization window, and wherein the start of transmitting the first frame is offset from the start time of the synchronization window. - View Dependent Claims (19, 20)
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Specification