On-line debugging system in a switching node of a data transmission network
US6772371B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2000 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Oct 14, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/362
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for freezing a processing unit to facilitate on-line debugging of a protocol engine within a switching node of a data transmission network. In accordance with the system of the present invention, the protocol engine includes a plurality of processing units such as an identification unit, a lookup unit, a traffic management and congestion unit, an enqueue unit, a dequeue unit, a traffic management scheduling unit, a frame transmission unit, a control unit, and a control block unit. The control block unit includes a freeze register containing multiple freeze bits, wherein each freeze bit is associated with one processing unit. In response to setting a freeze bit, resources and settings of a processing unit associated with the set freeze bit are prevented from being changed by the processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.