System and method for improving 3270 data stream performance by

Details System and method for improving 3270 data stream performance by System and method for improving 3270 data stream performance by

1995-12-08

1997-07-15

Lall, Parshotam S.

39520016, 39520017, 395850, G06F 1300

Patent

active

056491018

ABSTRACT:
An improved 3270 data stream architecture to eliminate data bytes in the 3270 data stream to improve line utilization and reduces network costs. First, a 6-bit increment option has been added to the addressing options for the buffer control orders to reduce the number of address bytes in the set buffer address (SBA) order, repeat to address (RA) order, and the erase unprotected to address (EUA) order. Second, a reduced Start Field (SF) and repeat to address (RA) orders are implemented with utilizing a modified Set Attribute (SA) order to designate the field attribute character and repeat character. The SF and RA orders following the SA order in the data stream are reduced in length. Third, a Modify Existing Format has been implemented which provides a means of modifying a format load that is currently in the format storage of the outboard device without having the host application program resend the entire format when only a small portion of the format needs to be modified. Specifically, the Load Format Structured Field has been modified to add the modify existing format fields to modify specified portions of the Load Format Structured Field without having to retransmit the entire field. Lastly, to enable a host application to selectively determine when to reset the Format Group rather than resetting the Format Group Selection automatically prior to being able to use a loaded format, a modified Set Partition Characteristics structured field is used by the host application to selectively enable and disable the Local Format Storage feature.

REFERENCES:
patent: 4240139 (1980-12-01), Fukuda et al.
patent: 4445176 (1984-04-01), Burk et al.
patent: 4750137 (1988-06-01), Harper et al.
patent: 4837679 (1989-06-01), Wiles, Jr. et al.
patent: 5005137 (1991-04-01), Ernst
patent: 5010514 (1991-04-01), Kippenhan et al.
patent: 5247616 (1993-09-01), Berggren

Affiliated with

Also associated with

Rating

System and method for improving 3270 data stream performance by does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for improving 3270 data stream performance by , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for improving 3270 data stream performance by will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1498828