Precise multicast timestamping
US12418392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2022 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Mar 18, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/1881
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network interface device includes a local register and packet processing circuitry coupled to the local register. The packet processing circuitry is to: capture a network packet transmitted by a software application running on an integrated computing system; capture, at time of transmission of the network packet, a value of a physical clock as a receive timestamp for subscriber entities that are running on the integrated computing system; store the receive timestamp in the local register; associate the receive timestamp from the local register with a first packet copy of the network packet; insert the first packet copy to a first receive pipeline of a first subscriber entity; associate the receive timestamp from the local register with a second packet copy of the network packet; and insert the second packet copy to a second receive pipeline of a second subscriber entity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.