Method and apparatus for identifying runt data frames received by a network switch
US6463478B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1999 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | May 21, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/324
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for detecting runt data frames received by a network switch includes a plurality of queuing logics, corresponding to the number of ports contained in the network switch. The queuing logics transfer received data frames to a memory area of the network switch. The queuing logics also update the value of a column write pointer that indicates the number of data transfers required to store a prescribed portion of a particular received data frame in the memory area. A rules queue examines the column write pointer and determines if the particular data frame is a runt data frame. A runt indication signal is generated, after the particular data frame has been completely transferred to the memory area, in order to indicate if the particular data frame was a runt data frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.