Mapping SNA session flow control to TCP flow control
US6192411A · kind A · utility
36Cited by
34References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1999 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Nov 9, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/27
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A TN3270 server (26) that forwards a 3270 data stream from a Systems Network Architecture ("SNA") connection (28) to a Transmission Control Protocol ("TCP") connection (24) monitors the TCP connection for segments that acknowledge thereby-transmitted bytes. It also keeps track of the unacknowledged-byte window sizes specified by received TCP-connection -segments. It responds with a pacing response to a pacing-request-containing SNA message only when forwarding of previously received information from the SNA can be completed without resulting in a number of unacknowledged bytes that exceeds the specified window size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.