Method for discarding corrupted data packets in a reliable transport fabric
US8169908B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2005 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Sep 3, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0079
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for discarding perpetually-rejected packets in a fabric-based interconnect having a reliable physical layer is disclosed. A transmitting component keeps a count of the number of negative acknowledgements (NAKs) it receives from the receiving component for packets the transmitting component sends. If the transmitting component receives a number of consecutive NAKs for the same packet that exceeds some pre-determined threshold, the packet is not resent, but is, instead, treated as having been acknowledged, and subsequent packets are allowed to be transmitted. Higher-level processes are then notified of the problem so as to allow the error to be dealt with at a higher level, but without obstructing the flow of packets on the physical layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.