Routing traffic through a virtual router-based network switch
US8111690B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Oct 29, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/505
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided for routing traffic through a virtual router-based network switch. According to one embodiment, a flow data structure is established that identifies current packet flows associated with multiple virtual routers in the virtual router-based network device. When an incoming packet is received by the virtual router-based network device, it is then determined whether the incoming packet is associated with a current packet flow by accessing the flow data structure based on a header associated with the incoming packet. If it is determined that the incoming packet is associated with the current packet flow, then the incoming packet is hardware forwarded via a network interface of the virtual router-based network device without intervention by a processor of the virtual router-based network device, otherwise the incoming packet is forwarded to software on the processor for flow learning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.