Recording in an external memory data messages processed by a data plane circuit
US11349781B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2019 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Oct 28, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2212/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Some embodiments provide novel circuits for recording data messages received by a data plane circuit of a forwarding element in an external memory outside of the data plane circuit. The external memory in some embodiments is outside of the forwarding element. In some embodiments, the data plane circuit encapsulates the received data messages that should be recorded with encapsulation headers, inserts into these headers addresses that identify locations for storing these data messages in a memory external to the data plane circuit, and forwards these encapsulated data messages so that these messages can be stored in the external memory by another circuit. Instead of encapsulating received data messages for storage, the data plane circuit in some embodiments encapsulates copies of the received data messages for storage. Accordingly, in these embodiments, the data plane circuit makes copies of the data messages that it needs to record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.