Infiniband router having an internal subnet architecture
US7307996B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2002 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Jun 21, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An Infiniband (IB) router with an internal subnet architecture is disclosed. It comprises multiple port interface circuits interconnected by an internal IB subnet. The multiple port interface circuits each connect to an external IB subnet and preferably determine new local route headers (LRH) for global IB packets (i.e. packets having a global route header (GRH)). The new LRHs for externally received packets include a destination local identifier (DLID) value that identifies another port interface circuit in the router, whereas the new LRHs for internally received packets include a DLID value that identifies an end node or router in the external subnet to which the port interface circuit is attached. The internal IB subnet transports IB packets between the port interface circuits, directing them according to the contents of the LRHs. The internal subnet may take the form of an IB switch or a network of IB switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.