Frame forwarding apparatus
US7724736B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2007 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Nov 27, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A frame forwarding apparatus comprises a receiving unit receiving a frame including a source address, a destination address and a VWAN identifier; a converting unit converting a VWAN identifier in the frame into one of degenerate VWAN identifiers that the number of adoptable values thereof is smaller than the number of VWAN identifiers; a storage unit containing at least one entry containing the source address in the frame, a degenerate VWAN identifier that a VWAN identifier in the frame is converted, and path information representing a path via which the frame is received; a retrieving unit retrieving, from said storage unit, an entry corresponding to the destination address in the frame and the degenerate VWAN identifier in the frame; a restoring unit restoring the degenerate VWAN identifier in the frame into the original VWAN identifier; and a transmitting unit transmitting the frame based on the path information in the entry retrieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.