Combined router, ATM, WAN and/or LAN switch (CRAWLS) cut through and method of use
US6185215A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1996 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Oct 15, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/351
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A cut through is provided in a combined router/switch in a data processing system network by having the router store and forward a first portion of a data flow from a source to a destination. The router determines whether the data flow is suitable for cut through. If found suitable, the router sends a redirect protocol to the source, directing the source to use a different destination address for all or part of the remainder of the data flow. The portion of the data flow having new destination address is then cut through the combined router/switch by the switch. If the cut through has a failure, responsibility for the data flow delivery returns to the router. If the destination of a cut through data flow is unavailable, the frames are stored by the switch and forwarded when the destination is available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.