Method and apparatus for providing integral cell payload integrity verification and detecting defective modules in telecommunication devices
US7420926B2 · kind B2 · utility
1Cited by
17References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2004 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Jul 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5652
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for identifying faulty modules within telecommunication devices, such as ATM switches, involves generating and attaching verification codes, such as a CRC or checksum codes, to data packets at an upstream location determining the integrity of the verification codes at each of multiple downstream location within a telecommunication device; and signaling an error condition where a corrupted data packet has been detected. A verification code may be written to a field of a data packet which is not used while the packet is in transit through the telecommunication device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.