Network change verification based on observed network flows
US11743122B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2022 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Mar 30, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0263
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network change verification (NCV) system is disclosed for checking whether a proposed configuration change on a network alters the way that the network controls recently observed network flows. In embodiments, the system builds an observed flow control model (OFCM) from logs of recent flows observed in the network. The OFCM, which may be periodically updated based on newly observed flows, provides a compact representation of how individual network flows were ostensibly controlled by the network. When a proposed configuration change is received, the system analyzes the change against the OFCM to check whether the change will alter how the network controls recently observed flows. If so, the proposed change is blocked, and an alert is generated identifying flows that are affected by the change. The NCV system thus prevents network operators from accidentally making changes on the network that will materially alter the behavior of the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.