Packet relay device and packet method, and program
US7792133B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 2004 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Oct 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A relay device (1) includes a plurality of network processing units (200-1˜200-N) having the same function and structure. A session management unit (202-1) in a certain network processing unit (e.g. 200-1), when receiving a packet from an external network through an IF unit (e.g. 204-1-1) in the same processing unit, searches a session table (230-1) for IF specifying information indicative of an IF unit as an output destination determined for a session to which the above packet belongs. When the above IF specifying information indicates an IF unit (e.g. 204-N-M) in other network processing unit (e.g. 200-N), a packet processing unit (201-1) transfers the above IF specifying information and the above packet to the network processing unit (200-N) through a switch unit (300). A packet processing unit (201-N) in the network processing unit (200-N) outputs the above packet to the IF unit (204-N-M) represented by the IF specifying information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.