Network activity report: UCSB Rand (RFC0113)
Original Publication Date: 1971-Apr-01
Included in the Prior Art Database: 2019-Feb-10
Internet Society Requests For Comment (RFCs)
E. Harslem: AUTHOR [+2]
Network Working Group 5 April 1971 Request for Comments: 113 E. F. Harslem NIC 5820 J. F. Heafner J. E. White
NETWORK ACTIVITY REPORT: UCSB <- -> RAND
The UCSB Remote Job Entry (RJE) and Remote Job Out- put Retrieval (RJOR) Systems described in NWG/RFC #105 have been used and validated from Rand. The facility is now being used on a limited basis as a production tool by another research group at Rand. Access to the UCSB facility from Rand is through the Network Service Program (NSP). This program is driven by Rand Video-Graphic consoles and allows a console user access to both local file storage (at Rand) and to the Network. A small module (UCSBMGR) was added to NSP to handle the UCSB RJE and RJOR protocols and data formats. In exercising the RJE/RJOR facility over the past two months, typical job sizes included input decks of 800 to 2800 80-character card images and output files of about 30 pages of printer linstings.
In sending files to UCSB we did a timing study over several transmissions of the above mentioned 2800 record file. On the average this file was transmitted at a rate of 250 80-character cards per minute. (Each 80-character card was a separte Network message.) This is, of course, much less than the advertised 30 kilobit rate; however, it should be remembered that the path from Rand to UCSB is through at least one intermediate IMP. On the other hand, the processes at each end of the connection were running at maximum priority with very small loads on either machine. An obvious area for speed-up would be the blocking of card images for network transmission. In the course of the last two months of networking, we have noticed approximately five serious failures...