Transport multiplexer—mechanisms to force ethernet traffic from one domain to be switched in a different (external) domain
US8238340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2010 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Aug 19, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/354
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network comprising a switch configured to switch traffic between a plurality of external interfaces via a plurality of virtual interfaces associated with the external interfaces, wherein the traffic comprises a plurality of external virtual local area network (VLAN) identifiers (VIDs) associated with the external interfaces to select the virtual interfaces, and wherein the virtual interfaces are configured to forward traffic based on an internal VID that is assigned to the traffic independent of the external VID. Also disclosed is a network component comprising at least one processor configured to implement a method comprising receiving a frame from a physical port, obtaining an external VID from a VLAN tag in the frame, removing the VLAN tag from the frame, selecting a virtual interface based on the external VID, and delivering the frame to the selected virtual interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.