Method to synchronize and upload an offloaded network stack connection with a network stack
US7181531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2002 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Dec 18, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/32
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method to synchronize and upload an offloaded network stack connection between a host network stack and peripheral device is presented. A state object for each layer in the stack is sent to the device that includes state variables that are classified as a constant, a cached variable handled by the host, or a delegated variable handled by the device. State that must be updated by the network stack and the peripheral device is cleanly divided. For example, statistics are tracked by the host, the device, or the host and the device. A statistic tracked by both the host and peripheral device is divided into non-overlapping portions and combined to produce the statistic. Once an upload is initiated, the device achieves a consistent state and hands delegated states to the stack. Each layer in the stack takes control of its delegated state and resources at the device are freed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.