Forwarding messages within a switch fabric of an SDN switch
US9699084B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2015 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jan 21, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/35
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A Software-Defined Networking (SDN) switch that includes external network ports for receiving external network traffic onto the SDN switch, external network ports for transmitting external network traffic out of the SDN switch, a Network Flow Switch (NFX) integrated circuit that has multiple network ports and that maintains a flow table, another NFX integrated circuit that has multiple network ports and that maintains a flow table, and a Network Flow Processor (NFP) circuit that maintains a flow table. The NFP circuit couples directly to a network port of the first NFX integrated circuit but does not couple directly to any network port of the second NFX integrated circuit. The NFP circuit sends a flow entry to one NFX integrated circuit along with an addressing label and the NFX integrated circuit uses the addressing label to determine that the flow entry is to be forwarded to the second NFX integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.