Methods and apparatus for processing packets including accessing one or more resources shared among processing engines
US7404015B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2002 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Oct 11, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are disclosed for processing packets, for example, using a high performance massively parallel packet processing architecture, distributing packets or subsets thereof to individual packet processors and gathering the processed packet or subsets and forwarding the resultant modified or otherwise processed packets, accessing packet processing resources across a shared resource network, accessing packet processing resources using direct memory access techniques, and/or storing one overlapping portion of a packet in a global packet memory while providing a second overlapping portion to a packet processor. In one implementation, the processing of the packet includes accessing one or more processing resources across a resource network shared by multiple packet processing engines. In one implementation, a global packet memory is one of these resources. In one implementation, these resources are accessed using direct memory access (DMA) techniques. In one implementation, a descriptor used in a prior DMA request is modified and then used in a second DMA request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.