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Nvidia patents network method to filter duplicate data packets using time windows

Nvidia describes a way for computers to avoid processing the same data packet twice by grouping them into specific time periods called epochs. The system checks if a packet matches the current time window and uses unique signatures to identify duplicates within that group.

Why it mattersThis helps ensure reliable data transfer in high-speed networks by preventing redundant processing, which is a standard improvement for network efficiency.

In the filing’s own words

Establish a process to identify non-idempotent packets of data communicated over a computing network between two nodes within an epoch to determine if a duplicate packet of data is received. The transmitter of the packet of data and the receiver of the packet of data establish an epoch where packets of data received within the epoch are considered packets that are to be processed, e.g., checked, if necessary if it is a duplicate packet. Packets received outside of the epoch can be processed, ignored, or buffered depending on the processes used by the two nodes. The time span of the epoch can be determined by the anticipated number of packets that will be received during the epoch and the available memory allocation to store unique signatures of the packets of data. The unique signatures can be a unique packet identifier or a combination of a packet type and identifier.

What exactly they claim (claim 1)

1. A method, comprising: establishing a packet handling protocol at a node, wherein the packet handling protocol specifies using an epoch counter at the node, the node is communicatively coupled to a computing network, and the epoch counter is initialized to a current value; receiving a packet of data at the node, wherein the packet of data is non-idempotent and includes an epoch value; and determining an action for the packet of data by comparing the epoch value to the current value of the epoch counter.

Facts

Company
Nvidia (NVIDIA Corporation)
Official title
PACKET DEDUPLICATION WITH EPOCHS
Publication number
US20260270189A1
Application number
19071603
Filed
Mar 5, 2025
Published
Sep 10, 2026
Inventors
1
Claims
24

Classified under

H04L 45/021 Electricity & electronicsH04L 5/0055 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.