Method, system, and computer program product for ethernet virtualization using an elastic FIFO memory to facilitate flow of unknown traffic to virtual hosts
US7751400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2008 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Aug 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/90
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A packet that represents unknown traffic for a virtual host is received. A first test is performed to ascertain whether or not a destination connection can be determined for the received packet wherein, if a destination connection can be determined, a second test is performed to ascertain whether or not one or more connection-specific resources required to send the packet to a virtual host memory corresponding to the destination connection are available. If a destination connection for the packet cannot be determined, the packet is passed to a store engine. If the one or more connection-specific resources are not available, the packet is passed to the store engine. The store engine obtains a free packet buffer from a FIFO memory. The store engine moves the packet into the free packet buffer and submits the free packet buffer to the elastic FIFO memory. A monitoring procedure is performed to detect both an availability of connection-specific resources and a presence of one or more waiting packets with a known destination connection. When (i) a destination connection with one or more waiting packets, and (ii) available connection-specific resources, are both detected, removing the pa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.