Packet switch device and method of the same
US9736073B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2014 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Jan 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A packet switch device includes an input port, a loop-back port, a storage module, and a switch engine. The input port receives a packet. The storage module stores packet flow tables. Each packet flow table includes at least one flow entry and action. The switch engine compares the packet with a default packet flow table of the plurality of packet flow tables when it determines that the packet does not include a flow header. The switch engine includes the packet with the flow entry of the default packet flow table and performs the corresponding action when the packet matches the flow entry. When the action includes a specific action of comparing the packet with another one of the packet flow tables, the switch engine attaches the flow header to the packet to set a flow ID therein and transmits the packet back to the switch engine through the loop-back port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.