Method and apparatus for direct frame switching using frame contained destination information
US9019963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Feb 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/201
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Frame contained destination information may be used by a switch to identify an appropriate output port for a given frame without performing a table access operation. This reduces the processing requirements of the switch to enable the switch to handle frames more efficiently. The frame contained destination information may be contained in the frame's local destination MAC addresses (DA) such that a portion of the DA directly indicates, for each switch that handles the frame, an output port for that switch. Different portions of the DA may be used by different switches, depending on where they are in the network hierarchy. Large switches may also use sub-fields within their allocated portion in the DA to identify internal switching components. A location resolution server may be provided to store and distribute IP and MAC addresses and respond to local ARP requests on the local domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.