Inter-packet gap network clock synchronization
First Claim
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1. A network component comprising:
- a processor configured to;
receive a first data stream from an upstream node, wherein the data stream comprises a plurality of Ethernet packets and a synchronization request comprising a timestamp;
synchronize a clock with the timestamp; and
transmit a response to the synchronization request to the upstream node in a second data stream having a same bandwidth as the first data stream,wherein the timestamp is absent from the response to the synchronization request.
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Abstract
A network component comprising a processor configured to receive a data stream from an upstream node, wherein the data stream comprises a plurality of Ethernet packets and a synchronization request comprising a timestamp, synchronize a clock with the timestamp, and transmit a response to the upstream node, wherein the data stream has the same bandwidth as a second data stream that does not have the synchronization request and the timestamp.
175 Citations
20 Claims
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1. A network component comprising:
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a processor configured to; receive a first data stream from an upstream node, wherein the data stream comprises a plurality of Ethernet packets and a synchronization request comprising a timestamp; synchronize a clock with the timestamp; and transmit a response to the synchronization request to the upstream node in a second data stream having a same bandwidth as the first data stream, wherein the timestamp is absent from the response to the synchronization request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A network component comprising:
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a processor configured to; receive a clock synchronization data in a data stream, wherein the clock synchronization data comprises a timestamp and a control header that indicates a requested operational mode; determine whether the network component supports the requested operational mode; and synchronize a clock with the clock synchronization data when the network component supports the requested operational mode, wherein the clock synchronization data is located in a gap between two Ethernet packets. - View Dependent Claims (14, 15, 16)
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17. A method comprising:
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receiving a first synchronization packet located in an inter-packet gap (IPG) of a data stream at a downstream node, wherein the downstream node supports an operational mode indicated in the synchronization packet; synchronizing a clock with the first synchronization packet, wherein the first synchronization packet comprises a timestamp and a control header; and transmitting a second synchronization packet to an upstream node in a second data stream, wherein the timestamp in the first synchronization packet is absent from the second synchronization packet. - View Dependent Claims (18, 19, 20)
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Specification